diff --git a/.github/workflows/update-prettier.yml b/.github/workflows/update-prettier.yml
index 28623d01..00340977 100644
--- a/.github/workflows/update-prettier.yml
+++ b/.github/workflows/update-prettier.yml
@@ -7,6 +7,11 @@ jobs:
   update_prettier:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/create-github-app-token@v2
+        id: app-token
+        with:
+          app-id: ${{ vars.OCTOKIT_APP_ID }}
+          private-key: ${{ secrets.OCTOKIT_APP_PRIVATE_KEY }}
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
@@ -16,7 +21,7 @@ jobs:
       - run: npm run lint:fix
       - uses: gr2m/create-or-update-pull-request-action@v1.x
         env:
-          GITHUB_TOKEN: ${{ secrets.OCTOKITBOT_PAT }}
+          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
         with:
           title: Prettier updated
           body: An update to prettier required updates to your code.
diff --git a/package-lock.json b/package-lock.json
index a228f09f..1203ab98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "esbuild": "^0.25.0",
         "express": "^5.1.0",
         "get-port": "^7.1.0",
-        "prettier": "3.5.3",
+        "prettier": "3.6.2",
         "prettier-plugin-packagejson": "^2.2.9",
         "tsx": "^4.19.3",
         "typescript": "^5.0.0",
@@ -2518,9 +2518,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.3.tgz",
-      "integrity": "sha512-QQtaxnoDJeAkDvDKWCLiwIXkTgRhwYDEQCghU9Z6q03iyek/rxRh/2lC3HB7P8sWT2xC/y5JDctPLBIGzHKbhw==",
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.6.2.tgz",
+      "integrity": "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==",
       "dev": true,
       "license": "MIT",
       "bin": {
diff --git a/package.json b/package.json
index 50b41b8d..a0663f7f 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "esbuild": "^0.25.0",
     "express": "^5.1.0",
     "get-port": "^7.1.0",
-    "prettier": "3.5.3",
+    "prettier": "3.6.2",
     "prettier-plugin-packagejson": "^2.2.9",
     "tsx": "^4.19.3",
     "typescript": "^5.0.0",
diff --git a/test/unit/event-handler-wrap-error-handler.test.ts b/test/unit/event-handler-wrap-error-handler.test.ts
index 0cc08a23..06202e4a 100644
--- a/test/unit/event-handler-wrap-error-handler.test.ts
+++ b/test/unit/event-handler-wrap-error-handler.test.ts
@@ -24,13 +24,13 @@ describe("wrapErrorHandler", () => {
   it("error handler returns rejected Error", async () => {
     const promise = Promise.reject(new Error("oopsydoopsy"));
 
-    wrapErrorHandler(() => promise, new Error("oops")),
+    (wrapErrorHandler(() => promise, new Error("oops")),
       await promise.catch(() => {
         assert(logCalls.length === 2);
         assert(/^FATAL/.test(logCalls[0][0]));
         assert(logCalls[1][0] instanceof Error);
         assert(logCalls[1][0].message === "oopsydoopsy");
-      });
+      }));
 
     logCalls = [];
   });