diff --git a/package.json b/package.json
index 4be9f4b..2a5f80d 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": "1.13.3",
+    "prettier": "1.13.4",
     "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 b065e05..30efd98 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2632,9 +2632,9 @@ 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@1.13.3:
-  version "1.13.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.13.3.tgz#e74c09a7df6519d472ca6febaa37cf7addb48a20"
+prettier@1.13.4:
+  version "1.13.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.13.4.tgz#31bbae6990f13b1093187c731766a14036fa72e6"
 
 pretty-format@^21.2.1:
   version "21.2.1"