diff --git a/package.json b/package.json
index 0bc4f700d..59f36bc4e 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "devDependencies": {
     "@types/cheerio": "0.22.13",
     "@types/got": "9.6.7",
-    "@types/koa": "2.0.50",
+    "@types/koa": "2.0.51",
     "@vuepress/plugin-back-to-top": "1.2.0",
     "@vuepress/plugin-google-analytics": "1.2.0",
     "@vuepress/plugin-pwa": "1.2.0",
diff --git a/yarn.lock b/yarn.lock
index efc7e0418..7927d9269 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1137,10 +1137,10 @@
   dependencies:
     "@types/koa" "*"
 
-"@types/koa@*", "@types/koa@2.0.50":
-  version "2.0.50"
-  resolved "https://registry.yarnpkg.com/@types/koa/-/koa-2.0.50.tgz#c295cbbd59f4898e7a8794c0f2e42e60da83aab2"
-  integrity sha512-TcgOD2lh0EISSadAk1DOBYw7kNoY9XdeB3vEMOKiDDaTMYm+V54nyPsU7Ulb/htb5OBIR79RgTeCWntCcophLw==
+"@types/koa@*", "@types/koa@2.0.51":
+  version "2.0.51"
+  resolved "https://registry.yarnpkg.com/@types/koa/-/koa-2.0.51.tgz#b08a57dc49e34aaf6b5cc004b5fef4b16ebe32e1"
+  integrity sha512-L5e/l6Z+SR9Jk6HM0wNYdkvWhSUBOvi+7Q5Uwn7kE/VmBXX7NIxARMigARWAyXAtXiv5Ry1P2HmebolFdvuIVg==
   dependencies:
     "@types/accepts" "*"
     "@types/cookies" "*"