diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c64b3b4..848e6e10 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-20.04 ]
-        smalltalk: [ GemStone64-3.7.0, GemStone64-3.5.8,  GemStone64-3.6.7 ]
+        smalltalk: [ GemStone64-3.7.0, GemStone64-3.5.8,  GemStone64-3.6.8 ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2