diff --git a/package.json b/package.json
index 9bc927e6..e386e078 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "redux-saga": "0.16.0",
     "reselect": "3.0.1",
     "styled-components": "3.4.1",
-    "yarn": "^1.9.4"
+    "yarn": "^1.21.1"
   },
   "devDependencies": {
     "@storybook/addon-actions": "3.4.8",
diff --git a/yarn.lock b/yarn.lock
index 4783b1b9..f927c3f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13080,9 +13080,10 @@ yargs@~3.10.0:
     decamelize "^1.0.0"
     window-size "0.1.0"
 
-yarn@^1.9.4:
-  version "1.9.4"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.9.4.tgz#3b82d8446b652775723900b470d966861976924b"
+yarn@^1.21.1:
+  version "1.21.1"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.21.1.tgz#1d5da01a9a03492dc4a5957befc1fd12da83d89c"
+  integrity sha512-dQgmJv676X/NQczpbiDtc2hsE/pppGDJAzwlRiADMTvFzYbdxPj2WO4PcNyriSt2c4jsCMpt8UFRKHUozt21GQ==
 
 yeoman-environment@^2.0.5, yeoman-environment@^2.1.1:
   version "2.3.3"