diff --git a/lerna.json b/lerna.json
index 4f1384c..e37edaa 100644
--- a/lerna.json
+++ b/lerna.json
@@ -7,5 +7,5 @@
     "packages/core",
     "packages/idraw"
   ],
-  "version": "0.3.0-alpha.5"
+  "version": "0.3.0-alpha.6"
 }
diff --git a/packages/board/package.json b/packages/board/package.json
index 92de9f4..2d7b52f 100644
--- a/packages/board/package.json
+++ b/packages/board/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@idraw/board",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
@@ -26,13 +26,13 @@
   "author": "chenshenhai",
   "license": "MIT",
   "devDependencies": {
-    "@idraw/types": "^0.3.0-alpha.5"
+    "@idraw/types": "^0.3.0-alpha.6"
   },
   "dependencies": {
-    "@idraw/util": "^0.3.0-alpha.5"
+    "@idraw/util": "^0.3.0-alpha.6"
   },
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }
diff --git a/packages/core/package.json b/packages/core/package.json
index 721e9a6..739efab 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@idraw/core",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
@@ -26,15 +26,15 @@
   "author": "chenshenhai",
   "license": "MIT",
   "devDependencies": {
-    "@idraw/types": "^0.3.0-alpha.5"
+    "@idraw/types": "^0.3.0-alpha.6"
   },
   "dependencies": {
-    "@idraw/board": "^0.3.0-alpha.5",
-    "@idraw/renderer": "^0.3.0-alpha.5",
-    "@idraw/util": "^0.3.0-alpha.5"
+    "@idraw/board": "^0.3.0-alpha.6",
+    "@idraw/renderer": "^0.3.0-alpha.6",
+    "@idraw/util": "^0.3.0-alpha.6"
   },
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }
diff --git a/packages/idraw/package.json b/packages/idraw/package.json
index d114bcc..cf2f5c2 100644
--- a/packages/idraw/package.json
+++ b/packages/idraw/package.json
@@ -1,6 +1,6 @@
 {
   "name": "idraw",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
@@ -26,14 +26,14 @@
   "author": "chenshenhai",
   "license": "MIT",
   "devDependencies": {
-    "@idraw/types": "^0.3.0-alpha.5"
+    "@idraw/types": "^0.3.0-alpha.6"
   },
   "dependencies": {
-    "@idraw/core": "^0.3.0-alpha.5",
-    "@idraw/util": "^0.3.0-alpha.5"
+    "@idraw/core": "^0.3.0-alpha.6",
+    "@idraw/util": "^0.3.0-alpha.6"
   },
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }
diff --git a/packages/renderer/package.json b/packages/renderer/package.json
index 1bcfce6..6fc59ed 100644
--- a/packages/renderer/package.json
+++ b/packages/renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@idraw/renderer",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
@@ -26,13 +26,13 @@
   "author": "chenshenhai",
   "license": "MIT",
   "devDependencies": {
-    "@idraw/types": "^0.3.0-alpha.5"
+    "@idraw/types": "^0.3.0-alpha.6"
   },
   "dependencies": {
-    "@idraw/util": "^0.3.0-alpha.5"
+    "@idraw/util": "^0.3.0-alpha.6"
   },
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }
diff --git a/packages/types/package.json b/packages/types/package.json
index b70b325..34e1599 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@idraw/types",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "src/index.ts",
   "types": "src/index.ts",
@@ -22,5 +22,5 @@
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }
diff --git a/packages/util/package.json b/packages/util/package.json
index 8f8dfb1..4b17522 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@idraw/util",
-  "version": "0.3.0-alpha.5",
+  "version": "0.3.0-alpha.6",
   "description": "",
   "main": "dist/index.cjs.js",
   "module": "dist/index.esm.js",
@@ -26,10 +26,10 @@
   "author": "chenshenhai",
   "license": "MIT",
   "devDependencies": {
-    "@idraw/types": "^0.3.0-alpha.5"
+    "@idraw/types": "^0.3.0-alpha.6"
   },
   "publishConfig": {
     "access": "public"
   },
-  "gitHead": "e2a434f40e0e7404bf3f1de612dfb3735b9ffc05"
+  "gitHead": "5cc462b9206ea0e4e70b5183771dfbf694402483"
 }