diff --git a/.github/workflows/Pharo12CI.yml b/.github/workflows/Pharo12CI.yml
index f9535e2..c23abb5 100644
--- a/.github/workflows/Pharo12CI.yml
+++ b/.github/workflows/Pharo12CI.yml
@@ -22,6 +22,8 @@ jobs:
     name: ${{ matrix.smalltalk }} on ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
+        with: 
+          fetch-depth: 0
       - uses: hpi-swa/setup-smalltalkCI@v1
         with:
           smalltalk-image: ${{ matrix.smalltalk }}