diff --git a/.github/workflows/run-layout-tests.yml b/.github/workflows/run-layout-tests.yml
index 4bf987e5..801b95ce 100644
--- a/.github/workflows/run-layout-tests.yml
+++ b/.github/workflows/run-layout-tests.yml
@@ -54,7 +54,7 @@ jobs:
       - name: install python 3.9 packages
         run: |
           python -m pip install --upgrade pip
-          pip install klayout==0.28.17 numpy scipy pytest pytest-cov
+          pip install klayout numpy scipy pytest pytest-cov
 
       - name: Test with pytest, python 3.9
         run: pytest klayout_dot_config/tech