diff --git a/.github/workflows/ironpython.yml b/.github/workflows/ironpython.yml
index 4f405f8617..13bae4724d 100644
--- a/.github/workflows/ironpython.yml
+++ b/.github/workflows/ironpython.yml
@@ -12,7 +12,7 @@ jobs:
     name: windows-ironpython
     runs-on: windows-latest
     env:
-      COMPAS_URL: https://pypi.debian.net/COMPAS/COMPAS-2.4.2.tar.gz
+      COMPAS_URL: https://pypi.debian.net/compas/compas-2.4.2.tar.gz
       COMPAS_ROBOTS_URL: https://github.com/compas-dev/compas_robots/archive/a40673d.tar.gz
       IRONPYTHON_PYTEST_URL: https://pypi.debian.net/ironpython-pytest/latest
       ROSLIBPY_URL: https://pypi.debian.net/roslibpy/latest