diff --git a/package.json b/package.json
index 36a3224..a425160 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "maptalks.snap",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "",
   "module": "./index.js",
   "main": "dist/maptalks.snap.js",
@@ -20,7 +20,7 @@
   },
   "homepage": "https://github.com/maptalks/maptalks.snap#readme",
   "devDependencies": {
-    "maptalks":"1.0.0-rc.11",
+    "maptalks": "1.0.0-rc.11",
     "cross-env": "^5.1.4",
     "eslint": "^6.2.2",
     "eslint-config-standard": "^14.1.0",
@@ -34,4 +34,4 @@
     "rollup-plugin-node-resolve": "^3.3.0",
     "rollup-plugin-terser": "^7.0.2"
   }
-}
\ No newline at end of file
+}