diff --git a/.github/workflows/python_actions.yml b/.github/workflows/python_actions.yml
index 23817850e..be9b0a0a4 100644
--- a/.github/workflows/python_actions.yml
+++ b/.github/workflows/python_actions.yml
@@ -25,4 +25,5 @@ jobs:
       dependencies: SpiNNUtils SpiNNMachine
       test_directories: unittests
       flake8-packages: pacman unittests
+      check_prereleases: false
     secrets: inherit