release: update version.
diff --git a/package-lock.json b/package-lock.json
index eb9f4c0..9312b67 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "echarts",
-  "version": "4.5.0-rc.2",
+  "version": "4.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 52a5866..26b2651 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "echarts",
-  "version": "4.5.0-rc.2",
+  "version": "4.5.0",
   "description": "A powerful charting and visualization library for browser",
   "license": "Apache-2.0",
   "keywords": [