diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 37b1884..fbfff32 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -27,7 +27,7 @@ jobs:
           --health-retries 5
     strategy:
       matrix:
-        smalltalk: [ Pharo64-11, Pharo64-10, Pharo64-9.0, Pharo64-8.0, Pharo64-7.0 ]
+        smalltalk: [ Pharo64-12, Pharo64-11, Pharo64-10, Pharo64-9.0, Pharo64-8.0, Pharo64-7.0 ]
     name: ${{ matrix.smalltalk }}
     steps:
       - uses: actions/checkout@v3