diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index df7fbb409b..664aa77667 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020, 2021, 2022 Ricardo Wurmus <rekado@elephly.net>
@@ -154,14 +154,14 @@ (define-public nyacc-1.00.2
 (define-public mes
   (package
     (name "mes")
-    (version "0.26")
+    (version "0.26.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/mes/"
                                   "mes-" version ".tar.gz"))
               (sha256
                (base32
-                "1m45wcrpp3syzdniqx12nyr6v8f9hsg516pwl1k9894nb2ni08hg"))))
+                "1x7wq9cj8pybdl736mn8z48zcwgvyvi9mr9mr9vv9jxzii90sdz1"))))
     (supported-systems '("armhf-linux" "i686-linux"
                          "x86_64-linux" "riscv64-linux"))
     (propagated-inputs (list mescc-tools nyacc-1.00.2))