diff --git a/package.json b/package.json
index cbefae4..b4ef3a1 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "@types/request": "2.47.0",
     "jest": "21.2.1",
     "jest-playback": "1.0.1",
-    "prettier": "1.11.1",
+    "prettier": "1.12.0",
     "prettier-config-ikatyang": "1.1.1",
     "ts-jest": "21.2.4",
     "ts-node": "4.1.0",
diff --git a/yarn.lock b/yarn.lock
index d6074b5..7d3f947 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2690,9 +2690,9 @@ prettier-config-ikatyang@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/prettier-config-ikatyang/-/prettier-config-ikatyang-1.1.1.tgz#9ccab4bc2d441e4c68b58dbe8f1a4e18213c3f2d"
 
-prettier@1.11.1:
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.11.1.tgz#61e43fc4cd44e68f2b0dfc2c38cd4bb0fccdcc75"
+prettier@1.12.0:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.12.0.tgz#d26fc5894b9230de97629b39cae225b503724ce8"
 
 pretty-format@^21.2.1:
   version "21.2.1"