diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index d3a8223a9c..eb1414c253 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -42,6 +42,7 @@
 ;;; Copyright © 2024 dan <i@dan.games>
 ;;; Copyright © 2024 Peepo Froggings <peepofroggings@tutanota.de>
 ;;; Copyright © 2024 Jakob Kirsch <jakob.kirsch@web.de>
+;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
 
 ;;; This file is part of GNU Guix.
 ;;;
@@ -945,7 +946,7 @@ (define-public json-dto
 (define-public nlohmann-json
   (package
     (name "nlohmann-json")
-    (version "3.11.2")
+    (version "3.11.3")
     (home-page "https://github.com/nlohmann/json")
     (source
      (origin
@@ -953,7 +954,7 @@ (define-public nlohmann-json
        (uri (git-reference (url home-page)
                            (commit (string-append "v" version))))
        (sha256
-        (base32 "0g6rfsbkvrxmacchz4kbr741yybj7mls3r4hgyfdd3pdbqhn2is9"))
+        (base32 "0y6474xxy027q083vyrz9iyz8xc090nydbd7pbxn58dmgyi0jpgc"))
        (file-name (git-file-name name version))
        (modules '((guix build utils)))
        (snippet