diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 24e1e48135..aef970cd88 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -8660,13 +8660,13 @@ (define-public python2-execnet
 (define-public python-icalendar
   (package
     (name "python-icalendar")
-    (version "4.0.3")
+    (version "4.0.4")
     (source (origin
              (method url-fetch)
              (uri (pypi-uri "icalendar" version))
              (sha256
               (base32
-               "0mk3dk1dxkcm46jy48v27j2w2349iv4sbimqj1yb5js43mx49hh7"))))
+               "16gjvqv0n05jrb9g228pdjgzd3amz2pdhvcgsn1jypszjg5m2w9l"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-dateutil" ,python-dateutil)