diff --git a/package-lock.json b/package-lock.json
index 369181a4..f918adf6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "itty-router": "^3.0.12",
+        "itty-router": "^4.0.22",
         "toucan-js": "^3.2.3"
       },
       "devDependencies": {
@@ -4764,9 +4764,9 @@
       }
     },
     "node_modules/itty-router": {
-      "version": "3.0.12",
-      "resolved": "https://registry.npmjs.org/itty-router/-/itty-router-3.0.12.tgz",
-      "integrity": "sha512-s98XTPhle6GGbaFf0kYrOD3Q8gyhnqvOqkwYijC3AmkceNKqWUp13YHg6dWmqmVv4pP7l7c94XI92I0EXVGO0w=="
+      "version": "4.0.22",
+      "resolved": "https://registry.npmjs.org/itty-router/-/itty-router-4.0.22.tgz",
+      "integrity": "sha512-FWK13vcITqld32NaOh+k2unRrR4qBZdzA9O1ctpqT1Q4lxKrHbtgaX1lLTv2VyXj3/8Waqk/NlDGNfxypJ8GKA=="
     },
     "node_modules/jest": {
       "version": "29.6.4",
diff --git a/package.json b/package.json
index 8dc0b832..db51882a 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "wrangler": "^3.6.0"
   },
   "dependencies": {
-    "itty-router": "^3.0.12",
+    "itty-router": "^4.0.22",
     "toucan-js": "^3.2.3"
   }
 }