diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 2e2e39c..185af8c 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     
     container:
-      image:  google/dart:latest
+      image:  google/dart:2.5.0-dev.2.1
     
     steps:
     - uses: actions/checkout@v1