diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index 1d547d6ac7..dad1944b1a 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -9,7 +9,7 @@
 ;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
 ;;; Copyright © 2015 David Hashe <david.hashe@dhashe.com>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2016, 2017, 2020, 2021, 2022 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2020-2023 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Fabian Harfert <fhmgufs@web.de>
 ;;; Copyright © 2016 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2016 Patrick Hetu <patrick.hetu@auf.org>
@@ -591,7 +591,7 @@ printing and other features typical of a source code editor.")
 (define-public gtksourceview
   (package
     (name "gtksourceview")
-    (version "5.5.1")
+    (version "5.8.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/gtksourceview/"
@@ -599,7 +599,7 @@ printing and other features typical of a source code editor.")
                                   "gtksourceview-" version ".tar.xz"))
               (sha256
                (base32
-                "068dqhacvs65gnmrryahm6qs0q050admlpqqi1gy8wgh2p6qrraa"))))
+                "0cw9h4aa84a48b3kd3rv0bb2mk7q1vz9hwkppxpqh8gg1p1d838i"))))
     (build-system meson-build-system)
     (arguments
      '(#:phases