diff --git a/package-lock.json b/package-lock.json
index bc29fb6..d270b8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "propskit",
-  "version": "4.0.9",
+  "version": "4.0.10",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2635,9 +2635,9 @@
       "integrity": "sha1-8XWXGqxp1eCA5+CcuBpPLFWIBb4="
     },
     "google-closure-library": {
-      "version": "20180910.0.0",
-      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20180910.0.0.tgz",
-      "integrity": "sha512-ipDZ6psRQ7SNW6JRP1xiY3cjMwisDrcFDRvno0722zv9iWc5jyE0B9tYVGS0EFcu91VrCBaf9qtu0B7H+VuV+w=="
+      "version": "20190301.0.0",
+      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20190301.0.0.tgz",
+      "integrity": "sha512-mpeszbnXpRhXZ0sPqUxBgUmk0RtmzrJRy3KFygp0Ih9JuRUjQTCLhwYQeIlK2vB2lShhY/KUo9E1Z1gvxDFxOQ=="
     },
     "google-protobuf": {
       "version": "3.6.1",
@@ -4183,6 +4183,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -4932,7 +4933,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "loose-envify": {
           "version": "1.3.1",
@@ -8001,6 +8003,16 @@
           "version": "1.8.3",
           "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
           "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+        },
+        "websocket": {
+          "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+          "requires": {
+            "debug": "^2.2.0",
+            "nan": "^2.3.3",
+            "typedarray-to-buffer": "^3.1.2",
+            "yaeti": "^0.0.6"
+          }
         }
       }
     },
@@ -8041,16 +8053,6 @@
         }
       }
     },
-    "websocket": {
-      "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-      "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
-      "requires": {
-        "debug": "^2.2.0",
-        "nan": "^2.3.3",
-        "typedarray-to-buffer": "^3.1.2",
-        "yaeti": "^0.0.6"
-      }
-    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
diff --git a/package.json b/package.json
index 7e18c68..0fcbf5b 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "ethereum-address": "^0.0.4",
     "ethereumjs-util": "^6.0.0",
     "goog": "^0.2.1",
-    "google-closure-library": "^20180910.0.0",
+    "google-closure-library": "^20190301.0.0",
     "google-protobuf": "^3.6.1",
     "lodash": "^4.17.4",
     "md5": "^2.2.1",
diff --git a/yarn.lock b/yarn.lock
index 5ce82ba..faa025d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2150,9 +2150,9 @@ goog@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/goog/-/goog-0.2.1.tgz#f175971aac69d5e080e7e09cb81a4f2c558805be"
 
-google-closure-library@^20180910.0.0:
-  version "20180910.0.0"
-  resolved "https://registry.yarnpkg.com/google-closure-library/-/google-closure-library-20180910.0.0.tgz#10f3c912a4974eedb01b853009b0847fd1ceef26"
+google-closure-library@^20190301.0.0:
+  version "20190301.0.0"
+  resolved "https://registry.yarnpkg.com/google-closure-library/-/google-closure-library-20190301.0.0.tgz#1d0f584ad207dc3869af44668e7fbf04d10acdee"
 
 google-protobuf@^3.6.1:
   version "3.8.0"