diff --git a/flake.lock b/flake.lock
index 26be5d8..f1f7cbb 100644
--- a/flake.lock
+++ b/flake.lock
@@ -496,16 +496,16 @@
     "mattermost-server": {
       "flake": false,
       "locked": {
-        "lastModified": 1701211274,
-        "narHash": "sha256-ZpjdJ1Uck0kM+togUKpxRij8V0jQX+12Meks+L1Tc90=",
+        "lastModified": 1702663737,
+        "narHash": "sha256-v2oBnKK189M+bH4OPgoL+70egyC9XPZUGEcWX2eF1fo=",
         "owner": "mattermost",
         "repo": "mattermost-server",
-        "rev": "77aeda5cedc8ef60d06da024202b8c7999efd671",
+        "rev": "eb0621908b3d9ecef077b855b25111431097b0d0",
         "type": "github"
       },
       "original": {
         "owner": "mattermost",
-        "ref": "v8.1.7",
+        "ref": "v8.1.8",
         "repo": "mattermost-server",
         "type": "github"
       }
@@ -513,14 +513,14 @@
     "mattermost-webapp": {
       "flake": false,
       "locked": {
-        "lastModified": 1701212296,
-        "narHash": "sha256-AZGnnpr99d/r6+dCG7ZMcrRnebuHJNykZ02Tu/LfD4o=",
+        "lastModified": 1702664631,
+        "narHash": "sha256-zA9DPZMQNADRP9/0L8UVnKGkmi//+8WXvljDX1xq+QI=",
         "type": "tarball",
-        "url": "https://releases.mattermost.com/8.1.7/mattermost-8.1.7-linux-amd64.tar.gz"
+        "url": "https://releases.mattermost.com/8.1.8/mattermost-8.1.8-linux-amd64.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://releases.mattermost.com/8.1.7/mattermost-8.1.7-linux-amd64.tar.gz"
+        "url": "https://releases.mattermost.com/8.1.8/mattermost-8.1.8-linux-amd64.tar.gz"
       }
     },
     "napalm": {
diff --git a/flake.nix b/flake.nix
index c57ae6e..88d37ac 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,9 +2,9 @@
   description = "hacc infra stuff";
 
   inputs = {
-    mattermost-webapp.url = "https://releases.mattermost.com/8.1.7/mattermost-8.1.7-linux-amd64.tar.gz";
+    mattermost-webapp.url = "https://releases.mattermost.com/8.1.8/mattermost-8.1.8-linux-amd64.tar.gz";
     mattermost-webapp.flake = false;
-    mattermost-server.url = "github:mattermost/mattermost-server?ref=v8.1.7";
+    mattermost-server.url = "github:mattermost/mattermost-server?ref=v8.1.8";
     mattermost-server.flake = false;
 
     nixpkgs.url = "nixpkgs/nixos-23.11";
diff --git a/pkgs/mattermost.nix b/pkgs/mattermost.nix
index e43f079..57d2fd8 100644
--- a/pkgs/mattermost.nix
+++ b/pkgs/mattermost.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, fetchFromGitHub, buildGoModule, buildEnv, lib, sources }:
 
 let
-  version = "8.1.7";
+  version = "8.1.8";
 
   mattermost-server = buildGoModule rec {
     pname = "mattermost-server";
@@ -9,7 +9,7 @@ let
 
     src = "${sources.mattermost-server}/server";
 
-    vendorHash = "sha256-RPnCAxksKppsjVtZYhwcoJuAmMJ85AstuoBFChKwAOk=";
+    vendorHash = "sha256-a2C+q24+UI0ZgSVI2JcsVDcNaSDLa4yckYqRVxbAl8M=";
 
     subPackages = [ "cmd/mattermost" ];