diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6a60383..e932350 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,6 +11,8 @@ jobs:
     runs-on: ubuntu-22.04
     container:
       image: ghcr.io/mxmehl/python-tests-image:3.12
+    env:
+      RUNNER_TOOL_CACHE: /toolcache
     steps:
       - name: Checkout
         uses: actions/checkout@v4