diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index ecae1c56cb..3cafad8217 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -4378,13 +4378,13 @@ of the old packages.")
 (define-public python-tweakwcs
   (package
     (name "python-tweakwcs")
-    (version "0.8.6")
+    (version "0.8.7")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "tweakwcs" version))
        (sha256
-        (base32 "1j75i02xzd36gp7pf6gks6nmp4ivi9cbphya4l69py5p62iaab99"))))
+        (base32 "0cch4z5zmmi1s02n1wdwss8p7qhrzyiajkaik0gga510kgdsvx48"))))
     (build-system pyproject-build-system)
     (propagated-inputs
      (list python-astropy