diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index f128950c80..cf636c83f3 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -6318,7 +6318,7 @@ (define-public python-roman-datamodels
            python-setuptools-scm
            python-wheel))
     (propagated-inputs
-     (list python-asdf
+     (list python-asdf-3
            python-asdf-astropy
            python-astropy
            python-gwcs