diff --git a/.github/workflows/pio.yml b/.github/workflows/pio.yml
index 48fc07f4..361ef062 100644
--- a/.github/workflows/pio.yml
+++ b/.github/workflows/pio.yml
@@ -45,7 +45,7 @@ jobs:
           path: |
             ~/.cache/pip
             ~/.platformio/.cache
-          key: ${{ runner.os }}-pio
+          key: ${{ runner.os }}-${{ matrix.environment}}-${{ hashFiles('platformio.ini') }}
       - uses: actions/setup-python@v4
         with:
           python-version: '3.9'