diff --git a/pkgs/by-name/th/thunderbird-mcp/package-lock.json b/pkgs/by-name/th/thunderbird-mcp/package-lock.json
index 3ad83f5984f8..b6898bb0ad9b 100644
--- a/pkgs/by-name/th/thunderbird-mcp/package-lock.json
+++ b/pkgs/by-name/th/thunderbird-mcp/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "thunderbird-mcp",
-  "version": "0.7.4",
+  "version": "0.9.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "thunderbird-mcp",
-      "version": "0.7.4",
+      "version": "0.9.1",
       "license": "MIT",
       "bin": {
         "thunderbird-mcp": "mcp-bridge.cjs"
diff --git a/pkgs/by-name/th/thunderbird-mcp/package.nix b/pkgs/by-name/th/thunderbird-mcp/package.nix
index a15fa5372f94..87ca28a07a39 100644
--- a/pkgs/by-name/th/thunderbird-mcp/package.nix
+++ b/pkgs/by-name/th/thunderbird-mcp/package.nix
@@ -7,13 +7,13 @@
 
 buildNpmPackage (finalAttrs: {
   pname = "thunderbird-mcp";
-  version = "0.7.4";
+  version = "0.9.1";
 
   src = fetchFromGitHub {
     owner = "TKasperczyk";
     repo = "thunderbird-mcp";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-jrmHqToe+lJTpoG1QYaYHVk84PaO5zKAXLwr3Opl0A4=";
+    hash = "sha256-uN/xvN+bbtFTWMd2Kko/d07FXna5e7jdfZPX8vAwfa4=";
   };
 
   postPatch = ''
@@ -23,16 +23,27 @@ buildNpmPackage (finalAttrs: {
   forceEmptyCache = true;
   dontNpmBuild = true;
 
-  npmDepsHash = "sha256-D0DAjK/u59rOKNf5kCu/OYkch+4lZYgdHkuib0sqtIw=";
+  npmDepsHash = "sha256-Dhm/6nJOGAFKUTmnWmDfnsLyYcDSVPvrWS4DlyOlBNk=";
 
   doCheck = true;
 
   # Tests use local mock servers.
   __darwinAllowLocalNetworking = true;
 
-  checkPhase = "npm test";
+  checkPhase = ''
+    runHook preCheck
+    npm test
+    runHook postCheck
+  '';
 
-  passthru.updateScript = nix-update-script { };
+  preCheck = ''
+    # This is a test for the project's CI
+    rm test/release-workflow.test.cjs
+  '';
+
+  passthru.updateScript = nix-update-script {
+    extraArgs = [ "--generate-lockfile" ];
+  };
 
   meta = {
     description = "MCP server for Thunderbird - enables AI assistants to access email, contacts, and calendars";