diff --git a/.github/workflows/test-docs.yml b/.github/workflows/test-docs.yml
index 49742b22..5feeebac 100644
--- a/.github/workflows/test-docs.yml
+++ b/.github/workflows/test-docs.yml
@@ -71,6 +71,7 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
+        cache-dependency-path: '**/setup.cfg'
     - name: Change dependencies to minimal supported versions
       run: sed -i -e 's/>=/==/g; s/~=.*==\(.*\)/==\1/g; s/~=/==/g;' setup.cfg
       if: matrix.dependencies == 'minimal'