diff --git a/package-lock.json b/package-lock.json
index 13099b3..dc33008 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,27 +5,29 @@
   "requires": true,
   "dependencies": {
     "@azure/functions": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/@azure/functions/-/functions-3.5.0.tgz",
-      "integrity": "sha512-RBYGdZIPYT17UPGBcXI9DPlpaEOO5D8r7pDpJsm/2N5eVrpqIRO8VZuoIiZiEQWV0LO3BZNzlvdS87pzBUBJzQ==",
+      "version": "4.11.2",
+      "resolved": "https://registry.npmjs.org/@azure/functions/-/functions-4.11.2.tgz",
+      "integrity": "sha512-U7qpPo0pUxDfdP3Q8gO5GLtust94nh8+RtIUvEKE4qU9yuDhL2vU1zzanuzkaV2j/TFv+EEmN8QDtchAgpeffw==",
       "dev": true,
       "requires": {
-        "iconv-lite": "^0.6.3",
-        "long": "^4.0.0",
-        "uuid": "^8.3.0"
+        "@azure/functions-extensions-base": "0.2.0",
+        "cookie": "^0.7.0"
       },
       "dependencies": {
-        "iconv-lite": {
-          "version": "0.6.3",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
-          "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-          "dev": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3.0.0"
-          }
+        "cookie": {
+          "version": "0.7.2",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+          "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+          "dev": true
         }
       }
     },
+    "@azure/functions-extensions-base": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/@azure/functions-extensions-base/-/functions-extensions-base-0.2.0.tgz",
+      "integrity": "sha512-ncCkHBNQYJa93dBIh+toH0v1iSgCzSo9tr94s6SMBe7DPWREkaWh8cq33A5P4rPSFX1g5W+3SPvIzDr/6/VOWQ==",
+      "dev": true
+    },
     "@hapi/bourne": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/@hapi/bourne/-/bourne-2.1.0.tgz",
@@ -1726,12 +1728,6 @@
       "resolved": "https://registry.npmjs.org/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz",
       "integrity": "sha512-chi4NHZlZqZD18a0imDHnZPrDeBbTtVN7GXMwuGdRH9qotxAjYs3aVLKc7zNOG9eddR5Ksd8rvFEBc9SsggPpg=="
     },
-    "long": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
-      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA==",
-      "dev": true
-    },
     "lru-cache": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
diff --git a/package.json b/package.json
index 75d32f9..d19c6c6 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@probot/adapter-azure-functions": "^1.0.23"
   },
   "devDependencies": {
-    "@azure/functions": "^3.2.0",
+    "@azure/functions": "^4.0.0",
     "nock": "^13.2.8",
     "smee-client": "^1.2.3",
     "uvu": "^0.5.6"