diff --git a/package-lock.json b/package-lock.json
index 2bfc94d..ecb8db7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3443,6 +3443,12 @@
         "estraverse": "^4.1.1"
       }
     },
+    "esprima": {
+      "version": "2.7.3",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-2.7.3.tgz",
+      "integrity": "sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=",
+      "dev": true
+    },
     "esrecurse": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.1.tgz",
@@ -5537,10 +5543,12 @@
     },
     "js-yaml": {
       "version": "3.7.0",
-      "resolved": "",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.7.0.tgz",
+      "integrity": "sha1-XJZ93YN6m/3KXy3oQlOr6KHAO4A=",
       "dev": true,
       "requires": {
-        "argparse": "^1.0.7"
+        "argparse": "^1.0.7",
+        "esprima": "^2.6.0"
       }
     },
     "jsbn": {
@@ -10281,9 +10289,9 @@
       }
     },
     "websocket-extensions": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
-      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
+      "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg==",
       "dev": true
     },
     "when": {