diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 412db8e..afcac78 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -3,9 +3,12 @@
   <component name="ChangeListManager">
     <list default="true" id="58e8cf80-3fad-47f4-8df5-2071d32769ef" name="Default Changelist" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/example/lib/main.dart" beforeDir="false" afterPath="$PROJECT_DIR$/example/lib/main.dart" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/ios/argon2_ffi.podspec" beforeDir="false" afterPath="$PROJECT_DIR$/ios/argon2_ffi.podspec" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/macos/argon2_ffi.podspec" beforeDir="false" afterPath="$PROJECT_DIR$/macos/argon2_ffi.podspec" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/android/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/android/build.gradle" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/android/app/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/example/android/app/build.gradle" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/android/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/example/android/build.gradle" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/android/gradle/wrapper/gradle-wrapper.properties" beforeDir="false" afterPath="$PROJECT_DIR$/example/android/gradle/wrapper/gradle-wrapper.properties" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/example/pubspec.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.lock" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -16,98 +19,7 @@
     <option name="testRunner" value="GRADLE" />
     <option name="delegatedBuild" value="true" />
   </component>
-  <component name="ExecutionTargetManager" SELECTED_TARGET="Pixel_2_API_23" />
-  <component name="FileEditorManager">
-    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/lib/argon2_ffi.dart">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="270">
-              <caret line="18" selection-start-line="18" selection-end-line="19" />
-              <folding>
-                <element signature="e#0#20#0" expanded="true" />
-              </folding>
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="309">
-              <caret line="42" column="53" selection-start-line="42" selection-start-column="53" selection-end-line="42" selection-end-column="53" />
-              <folding>
-                <element signature="e#0#19#0" expanded="true" />
-              </folding>
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/ios/Classes/argon2_ffi.c">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="330">
-              <caret line="22" selection-start-line="22" selection-end-line="22" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/ios/argon2_ffi.podspec">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="225">
-              <caret line="15" column="19" selection-start-line="15" selection-start-column="19" selection-end-line="15" selection-end-column="87" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/macos/argon2_ffi.podspec">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="225">
-              <caret line="16" column="49" selection-start-line="16" selection-start-column="49" selection-end-line="16" selection-end-column="49" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/ios/Classes/argon2src/argon2.c">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="183">
-              <caret line="189" column="4" selection-start-line="189" selection-start-column="4" selection-end-line="189" selection-end-column="4" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/android/CMakeLists.txt">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="285">
-              <caret line="19" selection-start-line="19" selection-end-line="19" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/android/build.gradle">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="308">
-              <caret line="43" column="14" selection-start-line="43" selection-start-column="14" selection-end-line="43" selection-end-column="14" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/pubspec.yaml">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="195">
-              <caret line="13" selection-start-line="13" selection-end-line="13" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-    </leaf>
-  </component>
+  <component name="ExecutionTargetManager" SELECTED_TARGET="Pixel_3_API_29" />
   <component name="FindInProjectRecents">
     <findStrings>
       <find>argon2_ffi</find>
@@ -122,82 +34,11 @@
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
-  <component name="IdeDocumentHistory">
-    <option name="CHANGED_PATHS">
-      <list>
-        <option value="$PROJECT_DIR$/example/lib/main.dart" />
-      </list>
-    </option>
-  </component>
-  <component name="ProjectView">
-    <navigator currentView="ProjectPane" proportions="" version="1">
-      <foldersAlwaysOnTop value="true" />
-    </navigator>
-    <panes>
-      <pane id="Scope" />
-      <pane id="ProjectPane">
-        <subPane>
-          <expand>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-              <item name="macos" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="ios" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="ios" type="462c0819:PsiDirectoryNode" />
-              <item name="Classes" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="macos" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="macos" type="462c0819:PsiDirectoryNode" />
-              <item name="Classes" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="argon2_ffi" type="b2602c69:ProjectViewProjectNode" />
-              <item name="argon2_ffi" type="462c0819:PsiDirectoryNode" />
-              <item name="test" type="462c0819:PsiDirectoryNode" />
-            </path>
-          </expand>
-          <select />
-        </subPane>
-      </pane>
-      <pane id="PackagesPane" />
-      <pane id="AndroidView" />
-    </panes>
+  <component name="ProjectId" id="1YLb7cBAb5bbHPUUgJ8onNeF1sb" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showExcludedFiles" value="true" />
+    <option name="showLibraryContents" value="true" />
   </component>
   <component name="PropertiesComponent">
     <property name="SHARE_PROJECT_CONFIGURATION_FILES" value="true" />
@@ -209,18 +50,6 @@
     <property name="settings.editor.selected.configurable" value="preferences.keymap" />
     <property name="show.migrate.to.gradle.popup" value="false" />
   </component>
-  <component name="RunDashboard">
-    <option name="ruleStates">
-      <list>
-        <RuleState>
-          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
-        </RuleState>
-        <RuleState>
-          <option name="name" value="StatusDashboardGroupingRule" />
-        </RuleState>
-      </list>
-    </option>
-  </component>
   <component name="SvnConfiguration">
     <configuration />
   </component>
@@ -234,12 +63,18 @@
     </task>
     <servers />
   </component>
-  <component name="ToolWindowManager">
-    <frame x="31" y="23" width="1445" height="948" extended-state="0" />
-    <editor active="true" />
-    <layout>
-      <window_info id="Captures" order="0" weight="0.25" />
-    </layout>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State>
+              <option name="COLUMN_ORDER" />
+            </State>
+          </value>
+        </entry>
+      </map>
+    </option>
   </component>
   <component name="WindowStateProjectService">
     <state x="645" y="174" width="670" height="676" key="search.everywhere.popup" timestamp="1582094890309">
@@ -247,26 +82,4 @@
     </state>
     <state x="645" y="174" width="670" height="676" key="search.everywhere.popup/0.23.1680.984@0.23.1680.984" timestamp="1582094890309" />
   </component>
-  <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="309">
-          <caret line="42" column="53" selection-start-line="42" selection-start-column="53" selection-end-line="42" selection-end-column="53" />
-          <folding>
-            <element signature="e#0#19#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/argon2_ffi.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="270">
-          <caret line="18" selection-start-line="18" selection-end-line="19" />
-          <folding>
-            <element signature="e#0#20#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-  </component>
 </project>
\ No newline at end of file
diff --git a/android/build.gradle b/android/build.gradle
index 06f044c..cd1edcd 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -2,14 +2,14 @@ group 'com.example.argon2_ffi'
 version '1.0-SNAPSHOT'
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.3.72'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -53,4 +53,5 @@ android {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "androidx.annotation:annotation:1.1.0"
 }
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index 01a286e..917840c 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
diff --git a/android/src/main/kotlin/com/example/argon2_ffi/Argon2FfiPlugin.kt b/android/src/main/kotlin/com/example/argon2_ffi/Argon2FfiPlugin.kt
index 48c82be..5db68cf 100644
--- a/android/src/main/kotlin/com/example/argon2_ffi/Argon2FfiPlugin.kt
+++ b/android/src/main/kotlin/com/example/argon2_ffi/Argon2FfiPlugin.kt
@@ -1,6 +1,6 @@
 package com.example.argon2_ffi
 
-import androidx.annotation.NonNull;
+import androidx.annotation.NonNull
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
@@ -9,7 +9,7 @@ import io.flutter.plugin.common.MethodChannel.Result
 import io.flutter.plugin.common.PluginRegistry.Registrar
 
 /** Argon2FfiPlugin */
-public class Argon2FfiPlugin: FlutterPlugin, MethodCallHandler {
+class Argon2FfiPlugin: FlutterPlugin, MethodCallHandler {
   /// The MethodChannel that will the communication between Flutter and native Android
   ///
   /// This local reference serves to register the plugin with the Flutter Engine and unregister it
@@ -17,8 +17,8 @@ public class Argon2FfiPlugin: FlutterPlugin, MethodCallHandler {
   private lateinit var channel : MethodChannel
 
   override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
-    channel = MethodChannel(flutterPluginBinding.getFlutterEngine().getDartExecutor(), "argon2_ffi")
-    channel.setMethodCallHandler(this);
+    channel = MethodChannel(flutterPluginBinding.binaryMessenger, "argon2_ffi")
+    channel.setMethodCallHandler(this)
   }
 
   // This static function is optional and equivalent to onAttachedToEngine. It supports the old
@@ -31,6 +31,7 @@ public class Argon2FfiPlugin: FlutterPlugin, MethodCallHandler {
   // depending on the user's project. onAttachedToEngine or registerWith must both be defined
   // in the same class.
   companion object {
+    @Suppress("unused")
     @JvmStatic
     fun registerWith(registrar: Registrar) {
       val channel = MethodChannel(registrar.messenger(), "argon2_ffi")
diff --git a/example/android/app/build.gradle b/example/android/app/build.gradle
index a8f052c..ce32134 100644
--- a/example/android/app/build.gradle
+++ b/example/android/app/build.gradle
@@ -62,6 +62,6 @@ flutter {
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test:runner:1.1.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/example/android/build.gradle b/example/android/build.gradle
index 3100ad2..11ed6dd 100644
--- a/example/android/build.gradle
+++ b/example/android/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.3.72'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/example/android/gradle/wrapper/gradle-wrapper.properties b/example/android/gradle/wrapper/gradle-wrapper.properties
index 296b146..6ba1576 100644
--- a/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Jun 23 08:50:38 CEST 2017
+#Fri May 29 14:33:16 CEST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 930ccc0..dc7c71f 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -1,13 +1,6 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.11"
   argon2_ffi:
     dependency: "direct dev"
     description:
@@ -15,55 +8,41 @@ packages:
       relative: true
     source: path
     version: "0.0.1"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.2"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.0.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
-  collection:
-    dependency: transitive
-    description:
-      name: collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.14.11"
-  convert:
+    version: "1.1.3"
+  clock:
     dependency: transitive
     description:
-      name: convert
+      name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
-  crypto:
+    version: "1.0.1"
+  collection:
     dependency: transitive
     description:
-      name: crypto
+      name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "1.14.12"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -71,6 +50,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   ffi:
     dependency: transitive
     description:
@@ -95,13 +81,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  image:
-    dependency: transitive
-    description:
-      name: image
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
   matcher:
     dependency: transitive
     description:
@@ -122,28 +101,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.8.0+1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.5"
+    version: "1.7.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -155,7 +113,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.7.0"
   stack_trace:
     dependency: transitive
     description:
@@ -190,7 +148,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.2.15"
   typed_data:
     dependency: transitive
     description:
@@ -205,12 +163,5 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
 sdks:
   dart: ">=2.6.0 <3.0.0"
diff --git a/pubspec.lock b/pubspec.lock
index 901eb56..870fa7e 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,62 +1,48 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.11"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.2"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.0.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
-  collection:
+    version: "1.1.3"
+  clock:
     dependency: transitive
     description:
-      name: collection
+      name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
-  convert:
+    version: "1.0.1"
+  collection:
     dependency: transitive
     description:
-      name: convert
+      name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
-  crypto:
+    version: "1.14.12"
+  fake_async:
     dependency: transitive
     description:
-      name: crypto
+      name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "1.1.0"
   ffi:
     dependency: "direct main"
     description:
@@ -81,13 +67,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  image:
-    dependency: transitive
-    description:
-      name: image
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
   matcher:
     dependency: transitive
     description:
@@ -108,28 +87,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.8.0+1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.5"
+    version: "1.7.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -141,7 +99,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.7.0"
   stack_trace:
     dependency: transitive
     description:
@@ -176,7 +134,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.2.15"
   typed_data:
     dependency: transitive
     description:
@@ -191,12 +149,5 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
 sdks:
   dart: ">=2.6.0 <3.0.0"