diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 4c0f8974..03654758 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -638,6 +638,7 @@ jobs:
         echo "RUNNER_WORKSPACE=`pwd`" >> $GITHUB_ENV
 
     - name: install build tools
+      shell: bash
       run: |
         apt-get update -q
         apt-get install -y software-properties-common
diff --git a/.github/workflows/src/build-test.yml b/.github/workflows/src/build-test.yml
index b7677f33..27d838fd 100644
--- a/.github/workflows/src/build-test.yml
+++ b/.github/workflows/src/build-test.yml
@@ -152,6 +152,7 @@ jobs:
         echo "RUNNER_WORKSPACE=`pwd`" >> $GITHUB_ENV
 
     - name: install build tools
+      shell: bash
       run: |
         apt-get update -q
         apt-get install -y software-properties-common