diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 83d86df..38eb5e6 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -20,9 +20,9 @@ jobs:
       matrix:
         os: [ubuntu-latest] # Add more os?
         python-version: [3.8, 3.9]
-        astropy-version: ['<5.0', '<6.0']
+        astropy-version: ['<5.0', '<5.1']
         numpy-version: ['<1.20', '<1.21', '<1.22']
-        scipy-version: ['<1.5', '<1.6', '<1.7']
+        scipy-version: ['<1.6', '<1.7']
         matplotlib-version: ['<3.3', '<3.4']
 
     steps: