diff --git a/pkgs/mattermost.nix b/pkgs/mattermost.nix
index f4b387c..0b4e3f5 100644
--- a/pkgs/mattermost.nix
+++ b/pkgs/mattermost.nix
@@ -12,13 +12,13 @@ buildGoModule rec {
   # See https://docs.mattermost.com/upgrade/extended-support-release.html
   # When a new ESR version is available (e.g. 8.1.x -> 9.5.x), update
   # the version regex in passthru.updateScript as well.
-  version = "9.11.0";
+  version = "9.11.1";
 
   src = fetchFromGitHub {
     owner = "mattermost";
     repo = "mattermost";
     rev = "v${version}";
-    hash = "sha256-Qs5/f2wltG7HRTOVxfS+6C9CP+NR475ix/4XHezKxIc=";
+    hash = "sha256-hRheF8ZF/Ai/jPmV4XrBwImNWHJ99ufXFc+IpWNVZMM=";
   };
 
   # Needed because buildGoModule does not support go workspaces yet.
@@ -34,7 +34,7 @@ buildGoModule rec {
 
   webapp = fetchurl {
     url = "https://releases.mattermost.com/${version}/mattermost-${version}-linux-amd64.tar.gz";
-    hash = "sha256-KT8hYVhjAvSluqnZ2IGX9RdCb8EqLtIyQuIKJkf+9No=";
+    hash = "sha256-FgRZKKiChkMijsUz/OmYxTR/mRZ59VGkL+iNul8kDZY=";
   };
 
   vendorHash = "sha256-0rxLt2ODlGsC3z5qw7m7QsverKrTtWicnHep4+fDD3M=";