diff --git a/packages/search-site/package.json b/packages/search-site/package.json
index e4bc47d..eb354ed 100644
--- a/packages/search-site/package.json
+++ b/packages/search-site/package.json
@@ -18,7 +18,6 @@
   "dependencies": {
     "esm": "^3.0.82",
     "lunr": "^2.3.3",
-    "mitt": "^1.1.3",
     "vue": "^2.5.17",
     "vue-router": "^3.0.1",
     "vue-template-compiler": "^2.5.17"
diff --git a/yarn.lock b/yarn.lock
index 7798306..e7f3d02 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5692,10 +5692,6 @@ mississippi@^2.0.0:
     stream-each "^1.1.0"
     through2 "^2.0.0"
 
-mitt@^1.1.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/mitt/-/mitt-1.1.3.tgz#528c506238a05dce11cd914a741ea2cc332da9b8"
-
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"