diff --git a/gnu/packages/diffoscope.scm b/gnu/packages/diffoscope.scm
index 23acf0aeb8..47dd36b919 100644
--- a/gnu/packages/diffoscope.scm
+++ b/gnu/packages/diffoscope.scm
@@ -67,7 +67,7 @@ (define-module (gnu packages diffoscope)
   #:use-module (ice-9 match))
 
 (define-public diffoscope
-  (let ((version "126"))
+  (let ((version "129"))
     (package
       (name "diffoscope")
       (version version)
@@ -79,7 +79,7 @@ (define-public diffoscope
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "0lmn2116g5l05nns8qd2kwsnnd144zrqhs53fsr88inzf0mkqwhj"))))
+                  "1r8hq93gga9n4jv4fyf1divc9cwvvjadkzl47lazzrfy3nn1qjwr"))))
       (build-system python-build-system)
       (arguments
        `(#:phases (modify-phases %standard-phases