diff --git a/package-lock.json b/package-lock.json
index 9d4d0a2..bd2b3a9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "@types/aws-lambda": "^8.10.147",
-        "lowercase-keys": "^2.0.0",
+        "lowercase-keys": "^4.0.0",
         "probot": "^14.0.0"
       },
       "devDependencies": {
@@ -2866,11 +2866,14 @@
       }
     },
     "node_modules/lowercase-keys": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-2.0.0.tgz",
-      "integrity": "sha512-tqNXrS78oMOE73NMxK4EMLQsQowWf8jKooH9g7xPavRT706R6bkQJ6DY2Te7QukaZsulxa30wQ7bk0pm4XiHmA==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-4.0.1.tgz",
+      "integrity": "sha512-wI9Nui/L8VfADa/cr/7NQruaASk1k23/Uh1khQ02BCVYiiy8F4AhOGnQzJy3Fl/c44GnYSbZHv8g7EcG3kJ1Qg==",
       "engines": {
-        "node": ">=8"
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/lru-cache": {
@@ -6465,9 +6468,9 @@
       }
     },
     "lowercase-keys": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-2.0.0.tgz",
-      "integrity": "sha512-tqNXrS78oMOE73NMxK4EMLQsQowWf8jKooH9g7xPavRT706R6bkQJ6DY2Te7QukaZsulxa30wQ7bk0pm4XiHmA=="
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-4.0.1.tgz",
+      "integrity": "sha512-wI9Nui/L8VfADa/cr/7NQruaASk1k23/Uh1khQ02BCVYiiy8F4AhOGnQzJy3Fl/c44GnYSbZHv8g7EcG3kJ1Qg=="
     },
     "lru-cache": {
       "version": "5.1.1",
diff --git a/package.json b/package.json
index ed3661d..eaff6bc 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "repository": "github:probot/adapter-aws-lambda-serverless",
   "dependencies": {
     "@types/aws-lambda": "^8.10.147",
-    "lowercase-keys": "^2.0.0",
+    "lowercase-keys": "^4.0.0",
     "probot": "^14.0.0"
   },
   "devDependencies": {