diff --git a/bower.json b/bower.json
index 317c165..49d02f2 100644
--- a/bower.json
+++ b/bower.json
@@ -4,7 +4,7 @@
     "Microsoft Corp."
   ],
   "homepage": "http://typescriptlang.org/",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "license": "Apache License 2.0",
   "description": "Runtime library for TypeScript helper functions",
   "keywords": [
diff --git a/package.json b/package.json
index ebf35ee..31425d9 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "tslib",
     "author": "Microsoft Corp.",
     "homepage": "http://typescriptlang.org/",
-    "version": "1.4.0",
+    "version": "1.5.0",
     "licenses": [
         {
             "type": "Apache License 2.0",