diff --git a/.github/workflows/cpp.yml b/.github/workflows/cpp.yml
index a27d9a3..59ed1ee 100644
--- a/.github/workflows/cpp.yml
+++ b/.github/workflows/cpp.yml
@@ -9,9 +9,12 @@ jobs:
     steps:
       - name: Checkout branch
         uses: actions/checkout@v4
+      - name: Install zsh
+        run: sudo apt-get install zsh
       - name: Install clang-format 18
         uses: aminya/setup-cpp@v1
         with:
           clangformat: 18.1.6
       - name: Run clang-format
         run: clang-format-18 **/*.cpp **/*.hpp -n --Werror
+        shell: zsh