diff --git a/package-lock.json b/package-lock.json
index 266d08b..89b3d7e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
       "devDependencies": {
         "@netlify/functions": "^4.0.0",
         "nock": "^14.0.5",
-        "smee-client": "^2.0.4",
+        "smee-client": "^4.0.0",
         "uvu": "^0.5.1"
       },
       "engines": {
@@ -4019,13 +4019,26 @@
       }
     },
     "node_modules/eventsource": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-2.0.2.tgz",
-      "integrity": "sha512-IzUmBGPR3+oUG9dUeXynyNmf91/3zUSJg1lCktzKw47OXuhco54U3r9B7O4XX+Rb1Itm9OZ2b0RkTs10bICOxA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-4.0.0.tgz",
+      "integrity": "sha512-fvIkb9qZzdMxgZrEQDyll+9oJsyaVvY92I2Re+qK0qEJ+w5s0X3dtz+M0VAPOjP1gtU3iqWyjQ0G3nvd5CLZ2g==",
       "dev": true,
       "license": "MIT",
+      "dependencies": {
+        "eventsource-parser": "^3.0.1"
+      },
       "engines": {
-        "node": ">=12.0.0"
+        "node": ">=20.0.0"
+      }
+    },
+    "node_modules/eventsource-parser": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.0.3.tgz",
+      "integrity": "sha512-nVpZkTMM9rF6AQ9gPJpFsNAMt48wIzB5TQgiTLdHiuO8XEDhUgZEhqKlZWXbIzo9VmJ/HvysHqEaVeD5v9TPvA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.0.0"
       }
     },
     "node_modules/execa": {
@@ -6945,28 +6958,21 @@
       "license": "MIT"
     },
     "node_modules/smee-client": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/smee-client/-/smee-client-2.0.4.tgz",
-      "integrity": "sha512-RxXCs0mfaxpI8JF4SeTM51XtRiprzW5g20HVt4aTQ36EB+RaN0aj0m/4EbXLGdfPlqahQ09d3UnJYmALN2CbYw==",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/smee-client/-/smee-client-4.3.1.tgz",
+      "integrity": "sha512-4x8Plwtzx/w9N/0TT2tegle6zaDkPnUrPLZUhDt1phUlMMRhlYuSDdEKl0LygZPegsztYd7sWmcYAm8UQ60xQA==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
-        "commander": "^12.0.0",
-        "eventsource": "^2.0.2",
+        "eventsource": "^4.0.0",
+        "undici": "^7.0.0",
         "validator": "^13.11.0"
       },
       "bin": {
         "smee": "bin/smee.js"
-      }
-    },
-    "node_modules/smee-client/node_modules/commander": {
-      "version": "12.1.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-12.1.0.tgz",
-      "integrity": "sha512-Vw8qHK3bZM9y/P10u3Vib8o/DdkvA2OtPtZvD871QKjy74Wj1WSKFILMPRPSdUSx5RFK1arlJzEtA4PkFgnbuA==",
-      "dev": true,
-      "license": "MIT",
+      },
       "engines": {
-        "node": ">=18"
+        "node": "^20.18 || >= 22"
       }
     },
     "node_modules/sonic-boom": {
@@ -7443,6 +7449,16 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici": {
+      "version": "7.13.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-7.13.0.tgz",
+      "integrity": "sha512-l+zSMssRqrzDcb3fjMkjjLGmuiiK2pMIcV++mJaAc9vhjSGpvM7h43QgP+OAMb1GImHmbPyG2tBXeuyG5iY4gA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.18.1"
+      }
+    },
     "node_modules/undici-types": {
       "version": "7.10.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.10.0.tgz",
diff --git a/package.json b/package.json
index b6b25f0..403d4dc 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "devDependencies": {
     "@netlify/functions": "^4.0.0",
     "nock": "^14.0.5",
-    "smee-client": "^2.0.4",
+    "smee-client": "^4.0.0",
     "uvu": "^0.5.1"
   },
   "engines": {