diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index cd0bc0a..b09b781 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -20,5 +20,5 @@ jobs:
     - uses: actions/cache@v4
       with:
         path: venv
-        key: venv-${{ hashFiles('Makefile') }}
+        key: venv2-${{ hashFiles('Makefile') }}
     - run: make