diff --git a/.github/actions/install_smithy_dafny_codegen_dependencies/action.yml b/.github/actions/install_smithy_dafny_codegen_dependencies/action.yml
index 33aad451c..db52a17ed 100644
--- a/.github/actions/install_smithy_dafny_codegen_dependencies/action.yml
+++ b/.github/actions/install_smithy_dafny_codegen_dependencies/action.yml
@@ -22,7 +22,7 @@ runs:
     - name: Setup Python, black, and docformatter for code formatting
       uses: actions/setup-python@v6
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: 3.11
         architecture: x64
     - shell: bash
       run: |