diff --git a/package-lock.json b/package-lock.json
index 82551e7..5fb7123 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
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-      "integrity": "sha1-vPEwUspURj8w+fx+lbmkdjCpSSE="
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@@ -1007,12 +1017,14 @@
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@@ -1166,6 +1182,7 @@
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@@ -1443,6 +1468,7 @@
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+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
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@@ -2917,7 +2982,7 @@
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-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
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@@ -2979,11 +3044,6 @@
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-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
-    },
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       "resolved": "https://registry.npmjs.org/undefsafe/-/undefsafe-2.0.2.tgz",
@@ -3193,14 +3253,9 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
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-      "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
-      }
+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
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@@ -3209,9 +3264,9 @@
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     },
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-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
-      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.6.3.tgz",
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@@ -3222,7 +3277,7 @@
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-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
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 }
diff --git a/package.json b/package.json
index b949639..f2b078e 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "dependencies": {
     "express": "^4.16.3",
-    "socket.io": "^2.1.1"
+    "socket.io": "^2.5.0"
   },
   "devDependencies": {
     "nodemon": "^1.17.5"