diff --git a/.github/workflows/plexon2-testing.yml b/.github/workflows/plexon2-testing.yml
index 1c66377ef..c3b2f314a 100644
--- a/.github/workflows/plexon2-testing.yml
+++ b/.github/workflows/plexon2-testing.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: true
       matrix:
         os:  [ubuntu-latest]
-        python-version: ['3.9', '3.12']
+        python-version: ['3.12']
         numpy-version: ['1.26', '2.0']
     defaults:
       # by default run in bash mode (required for conda usage)