diff --git a/package-lock.json b/package-lock.json
index 2d10ec5b..1481dd03 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -172,9 +172,9 @@
 			"dev": true
 		},
 		"async-limiter": {
-			"version": "1.0.0",
-			"resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-			"integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+			"integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
 		},
 		"asynckit": {
 			"version": "0.4.0",
@@ -862,7 +862,8 @@
 				"ansi-regex": {
 					"version": "2.1.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"aproba": {
 					"version": "1.2.0",
@@ -883,12 +884,14 @@
 				"balanced-match": {
 					"version": "1.0.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"brace-expansion": {
 					"version": "1.1.11",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"balanced-match": "1.0.0",
 						"concat-map": "0.0.1"
@@ -903,17 +906,20 @@
 				"code-point-at": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"concat-map": {
 					"version": "0.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"console-control-strings": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"core-util-is": {
 					"version": "1.0.2",
@@ -1030,7 +1036,8 @@
 				"inherits": {
 					"version": "2.0.3",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"ini": {
 					"version": "1.3.5",
@@ -1042,6 +1049,7 @@
 					"version": "1.0.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"number-is-nan": "1.0.1"
 					}
@@ -1056,6 +1064,7 @@
 					"version": "3.0.4",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"brace-expansion": "1.1.11"
 					}
@@ -1063,12 +1072,14 @@
 				"minimist": {
 					"version": "0.0.8",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"minipass": {
 					"version": "2.3.5",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"safe-buffer": "5.1.2",
 						"yallist": "3.0.3"
@@ -1087,6 +1098,7 @@
 					"version": "0.5.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"minimist": "0.0.8"
 					}
@@ -1167,7 +1179,8 @@
 				"number-is-nan": {
 					"version": "1.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"object-assign": {
 					"version": "4.1.1",
@@ -1179,6 +1192,7 @@
 					"version": "1.4.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"wrappy": "1.0.2"
 					}
@@ -1264,7 +1278,8 @@
 				"safe-buffer": {
 					"version": "5.1.2",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"safer-buffer": {
 					"version": "2.1.2",
@@ -1300,6 +1315,7 @@
 					"version": "1.0.2",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"code-point-at": "1.1.0",
 						"is-fullwidth-code-point": "1.0.0",
@@ -1319,6 +1335,7 @@
 					"version": "3.0.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"ansi-regex": "2.1.1"
 					}
@@ -1362,12 +1379,14 @@
 				"wrappy": {
 					"version": "1.0.2",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"yallist": {
 					"version": "3.0.3",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				}
 			}
 		},
@@ -3236,11 +3255,11 @@
 			"dev": true
 		},
 		"ws": {
-			"version": "6.2.1",
-			"resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
-			"integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
+			"version": "6.2.2",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-6.2.2.tgz",
+			"integrity": "sha512-zmhltoSR8u1cnDsD43TX59mzoMZsLKqUweyYBAIvTngR3shc0W6aOZylZmq/7hqyVxPdi+5Ud2QInblgyE72fw==",
 			"requires": {
-				"async-limiter": "1.0.0"
+				"async-limiter": "~1.0.0"
 			}
 		}
 	}
diff --git a/package.json b/package.json
index fca13e5a..1c55706e 100644
--- a/package.json
+++ b/package.json
@@ -122,6 +122,6 @@
   "dependencies": {
     "mime-types": "^2.1.22",
     "open": "^6.1.0",
-    "ws": "^6.2.1"
+    "ws": "^6.2.2"
   }
 }