diff --git a/package-lock.json b/package-lock.json
index f8032f3..6e43bf9 100644
--- a/package-lock.json
+++ b/package-lock.json
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     "webpack-sources": {
@@ -9176,6 +9312,12 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
+    "xregexp": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
+      "integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg==",
+      "dev": true
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index b3cd89f..fc26cae 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,6 @@
     "typescript": "3.4.5",
     "webpack": "4.30.0",
     "webpack-cli": "3.0.8",
-    "webpack-dev-server": "3.1.4"
+    "webpack-dev-server": "3.1.11"
   }
 }