diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index abcee69..b17fe9a 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -7,9 +7,12 @@ name: Dart
 
 on:
   push:
-    branches: [ "master" ]
+    branches: ['master']
   pull_request:
-    branches: [ "master" ]
+    branches: ['master']
+
+env:
+  SHELL: '/bin/sh'
 
 jobs:
   build: