diff --git a/.github/workflows/buildandruntestslinux.yml b/.github/workflows/buildandruntestslinux.yml
index 5bd41f384..ef7fd6d65 100644
--- a/.github/workflows/buildandruntestslinux.yml
+++ b/.github/workflows/buildandruntestslinux.yml
@@ -7,6 +7,10 @@ on:
     types:
       - created
 
+defaults:
+  run:
+    shell: sh
+
 jobs:
   build: