diff --git a/package.json b/package.json
index b7ac65a..7a356f7 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,6 @@
     "@types/koa": "^2.0.48",
     "koa": "^2.7.0",
     "typescript": "^3.4.5",
-    "yarn": "^1.16.0"
+    "yarn": "^1.22.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 8f9b524..a41901f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -367,10 +367,10 @@ vary@^1.1.2:
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
 
-yarn@^1.16.0:
-  version "1.16.0"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.16.0.tgz#5701b58ac555ff91f7b889b7d791b3dc86f8f999"
-  integrity sha512-cfemyGlnWKA1zopUUgebTPf8C4WkPIZ+TJmklwcEAJ4u6oWPtJeAzrsamaGGh/+b1XWe8W51yzAImC4AWbWR1g==
+yarn@^1.22.0:
+  version "1.22.0"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.22.0.tgz#acf82906e36bcccd1ccab1cfb73b87509667c881"
+  integrity sha512-KMHP/Jq53jZKTY9iTUt3dIVl/be6UPs2INo96+BnZHLKxYNTfwMmlgHTaMWyGZoO74RI4AIFvnWhYrXq2USJkg==
 
 ylru@^1.2.0:
   version "1.2.1"