diff --git a/package-lock.json b/package-lock.json
index 13099b3..9315ce4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,27 +5,30 @@
   "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": "4.7.2",
+      "resolved": "https://registry.npmjs.org/@azure/functions/-/functions-4.7.2.tgz",
+      "integrity": "sha512-5ps8yz4gn6oZSzeQbpUreWHFYl/YS03F1Sk/pz7YJphfctRcHuLF5tcrdm9AyRiYzja4Bkd63bju+g/E27opPQ==",
       "dev": true,
       "requires": {
-        "iconv-lite": "^0.6.3",
+        "cookie": "^0.7.0",
         "long": "^4.0.0",
-        "uuid": "^8.3.0"
+        "undici": "^5.29.0"
       },
       "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
         }
       }
     },
+    "@fastify/busboy": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
+      "integrity": "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==",
+      "dev": true
+    },
     "@hapi/bourne": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/@hapi/bourne/-/bourne-2.1.0.tgz",
@@ -2475,6 +2478,15 @@
       "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
       "optional": true
     },
+    "undici": {
+      "version": "5.29.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
+      "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
+      "dev": true,
+      "requires": {
+        "@fastify/busboy": "^2.0.0"
+      }
+    },
     "universal-github-app-jwt": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/universal-github-app-jwt/-/universal-github-app-jwt-1.1.1.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"