diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8edf3c83..a14b2a3a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,7 +25,7 @@ jobs:
       - uses: hpi-swa/setup-smalltalkCI@v1
         id: smalltalkci
         with:
-          smalltalk-image: Pharo64-13
+          smalltalk-image: Pharo64-alpha
       - run: smalltalkci -s ${{ steps.smalltalkci.outputs.smalltalk-image }}
         shell: bash
         timeout-minutes: 15