diff --git a/package-lock.json b/package-lock.json
index e149f20aa..fa1236b0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "blockly",
-  "version": "2.20190722.0-develop",
+  "version": "3.20191014.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2867,9 +2867,9 @@
       "optional": true
     },
     "google-closure-library": {
-      "version": "20190618.0.0",
-      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20190618.0.0.tgz",
-      "integrity": "sha512-V0RbatvAmCfdOTeTXXbXklGU1hgPus8YkpjyaMBmoCcajgtk9vL+SsRhD1Ntk6QNkbzD9WGKLdyovMw7NJ8VnA==",
+      "version": "20200315.0.0",
+      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20200315.0.0.tgz",
+      "integrity": "sha512-LdCecdztxDvA9K+8b6E9aE4Hw7ABdYokfA7d5qW1sd/iy8O1l0+eXLlddE2JtW62gf8UjcPskBua4fU4J5lmHA==",
       "dev": true
     },
     "graceful-fs": {
@@ -6210,9 +6210,9 @@
       }
     },
     "tree-kill": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.1.tgz",
-      "integrity": "sha512-4hjqbObwlh2dLyW4tcz0Ymw0ggoaVDMveUB9w8kFSQScdRLo0gxO9J7WFcUBo+W3C1TLdFIEwNOWebgZZ0RH9Q==",
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz",
+      "integrity": "sha512-L0Orpi8qGpRG//Nd+H90vFB+3iHnue1zSSGmNOOCh1GLJ7rUKVwV2HvijphGQS2UmhUZewS9VgvxYIdgr+fG1A==",
       "dev": true
     },
     "tslib": {
diff --git a/package.json b/package.json
index 3fa62d65c..7437ba307 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "eslint": "^5.13.0",
     "fs": "0.0.1-security",
     "google-closure-compiler": "^20190618.0.0",
-    "google-closure-library": "^20190618.0.0",
+    "google-closure-library": "^20200315.0.0",
     "gulp": "^4.0.2",
     "gulp-concat": "^2.6.1",
     "gulp-insert": "^0.5.0",