diff --git a/.github/workflows/python-cqa.yml b/.github/workflows/python-cqa.yml
index ac04a7a6..02a2b724 100644
--- a/.github/workflows/python-cqa.yml
+++ b/.github/workflows/python-cqa.yml
@@ -24,7 +24,7 @@ jobs:
     - uses: actions/cache@v4
       with:
         path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('pyproject.toml') }}
         restore-keys: |
           ${{ runner.os }}-pip-
     - name: Set up Python ${{ matrix.python-version }}