diff --git a/package.json b/package.json
index 5d28bf9..ceacaf6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "coc-tsserver",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "description": "tsserver extension for coc.nvim",
   "main": "lib/index.js",
   "publisher": "chemzqm",
@@ -622,7 +622,6 @@
   "author": "chemzqm@gmail.com",
   "license": "MIT",
   "devDependencies": {
-    "@chemzqm/tsconfig": "^0.0.3",
     "@types/node": "^10.12.0",
     "coc.nvim": "^0.0.79",
     "rimraf": "^3.0.2",
diff --git a/yarn.lock b/yarn.lock
index c17e20a..6b4ae7c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9,11 +9,6 @@
   dependencies:
     msgpack-lite "^0.1.26"
 
-"@chemzqm/tsconfig@^0.0.3":
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/@chemzqm/tsconfig/-/tsconfig-0.0.3.tgz#ce3480d15d8cec46a315488caa07c9fca819aecc"
-  integrity sha512-MjF25vbqLYR+S+JJLgBi0vn4gZqv/C87H+yPSlVKEqlIJAJOGJOgFPUFvRS7pdRHqkv2flX/oRxzxhlu2V0X1w==
-
 "@tootallnate/once@1":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@tootallnate/once/-/once-1.1.2.tgz#ccb91445360179a04e7fe6aff78c00ffc1eeaf82"