diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index 8f2ca46743..f8899e7849 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -2191,17 +2191,6 @@ implementation of the ASDF Standard.")
        (sha256
         (base32 "0scnw5y4x5k3vyfylq0w612b662xlccx3gsscaw082zlv2yxfyh4"))))))
 
-(define-public python-asdf-4
-  (package
-    (inherit python-asdf)
-    (version "4.5.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "asdf" version))
-       (sha256
-        (base32 "1h9dvnxdcd7cmjddpfnjsn6a1acav8gm5307gf7kpifacf99fdqz"))))))
-
 (define-public python-asdf-astropy
   (package
     (name "python-asdf-astropy")