diff --git a/.github/workflows/test_python.yml b/.github/workflows/test_python.yml
index 3547635277..5daf2d365e 100644
--- a/.github/workflows/test_python.yml
+++ b/.github/workflows/test_python.yml
@@ -73,6 +73,7 @@ jobs:
         with:
           python-version: ${{ matrix.version }}
           cache: pip
+          cache-dependency-path: 'python/requirements.txt'
 
       - name: Validate version
         run: python3 --version | grep ${{ matrix.version }} || (echo "Invalid Python version - $(python3 --version)" && exit 1)