diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b821ff3d0..df2f7e62c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -55,7 +55,7 @@ jobs:
         id: cache
         with:
           path: ${{ steps.composer-cache.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
           restore-keys: |
             ${{ runner.os }}-composer-