diff --git a/pkgs/by-name/ma/mattermostLatest/package.nix b/pkgs/by-name/ma/mattermostLatest/package.nix
index 49bcf1146148..2dafcccd429a 100644
--- a/pkgs/by-name/ma/mattermostLatest/package.nix
+++ b/pkgs/by-name/ma/mattermostLatest/package.nix
@@ -11,10 +11,10 @@ mattermost.override {
     # and make sure the version regex is up to date here.
     # Ensure you also check ../mattermost/package.nix for ESR releases.
     regex = "^v(11\\.[0-9]+\\.[0-9]+)$";
-    version = "11.2.1";
-    srcHash = "sha256-y92zzL8yHlDxOStvAr1Mu+PPhTVlVQueBNtm4dhC/4w=";
-    vendorHash = "sha256-mvQivHijLEdfTk7QzlfWQQn9S/9lMfrI+jSKKz0bh3M=";
-    npmDepsHash = "sha256-YuJ0IfvhWb6kzBoTMYWV3mUhMuhrAelKoyXlmnQJovo=";
+    version = "11.3.0";
+    srcHash = "sha256-D5LR3kk9HO8vuvykCgaV5k5Y/M7t63afxXj1iUBS1j8=";
+    vendorHash = "sha256-3Ic8ogcLLzcFOmBzhFnsh16hVvhyIsfDeNgZevQlL9A=";
+    npmDepsHash = "sha256-w54D5HMLW5wP6ercgWXv3Hb7Ayrj3M1SvNoUu1aU2Bk=";
     lockfileOverlay = ''
       unlock(.; "@floating-ui/react"; "channels/node_modules/@floating-ui/react")
     '';