diff --git a/package-lock.json b/package-lock.json
index d8d692c..83475bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "angularjs-typescript-webpack",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -3091,9 +3091,9 @@
       "dev": true
     },
     "eventemitter3": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
-      "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q=="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.0.tgz",
+      "integrity": "sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg=="
     },
     "events": {
       "version": "3.0.0",
@@ -5093,6 +5093,14 @@
         "eventemitter3": "^3.0.0",
         "follow-redirects": "^1.0.0",
         "requires-port": "^1.0.0"
+      },
+      "dependencies": {
+        "eventemitter3": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
+          "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==",
+          "dev": true
+        }
       }
     },
     "http-proxy-middleware": {
diff --git a/package.json b/package.json
index 26608ad..5da7ded 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "@uirouter/angularjs": "1.0.22",
     "angular": "^1.7.8",
     "angular-ts-decorators": "^3.7.7",
-    "eventemitter3": "3.1.2"
+    "eventemitter3": "4.0.0"
   },
   "scripts": {
     "prestart": "rimraf dist & copyfiles -f src/assets/* dist/",