diff --git a/package-lock.json b/package-lock.json
index c521e97..9cb61df 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2261,9 +2261,9 @@
       }
     },
     "google-closure-library": {
-      "version": "20160315.0.0",
-      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20160315.0.0.tgz",
-      "integrity": "sha1-wTG3DatB/tu784It+OTD50Ta1cE=",
+      "version": "20190301.0.0",
+      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20190301.0.0.tgz",
+      "integrity": "sha512-mpeszbnXpRhXZ0sPqUxBgUmk0RtmzrJRy3KFygp0Ih9JuRUjQTCLhwYQeIlK2vB2lShhY/KUo9E1Z1gvxDFxOQ==",
       "dev": true
     },
     "graceful-fs": {
diff --git a/package.json b/package.json
index 92aff1f..4410066 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "homepage": "https://github.com/oxygenxml/webapp-charpicker-plugin#readme",
   "devDependencies": {
     "google-closure-compiler": "20160315.2.0",
-    "google-closure-library": "20160315.0.0",
+    "google-closure-library": "20190301.0.0",
     "gulp": "4.0.2",
     "gulp-clean-css": "4.3.0",
     "gulp-closure-compiler": "0.4.0",