diff --git a/.github/workflows/cpp.yml b/.github/workflows/cpp.yml
index 2b75421..7b66792 100644
--- a/.github/workflows/cpp.yml
+++ b/.github/workflows/cpp.yml
@@ -16,6 +16,7 @@ jobs:
           submodules: recursive
           
       - name: install_dependencies
+        shell: bash
         run: |
           if [ "$RUNNER_OS" == "Linux" ]; then
             sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
@@ -23,6 +24,7 @@ jobs:
           fi
 
       - name: build
+        shell: bash
         run: |
           if [ "$RUNNER_OS" == "Linux" ]; then
             sudo apt-get update && sudo apt-get install xorg-dev libglu1-mesa-dev freeglut3-dev mesa-common-dev libsdl2-dev
@@ -35,4 +37,3 @@ jobs:
           cd build
           cmake ..
           cmake --build . -j 8
-        shell: bash