diff --git a/package.json b/package.json
index e1676508..efd1f00a 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "devDependencies": {
     "eslint": "5.12.1",
     "mocha": "^5.2.0",
-    "prettier": "1.16.3"
+    "prettier": "1.16.4"
   },
   "dependencies": {
     "axios": "^0.18.0",
diff --git a/yarn.lock b/yarn.lock
index af741d9d..a9679bfa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -670,9 +670,9 @@ prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prettier@1.16.3:
-  version "1.16.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.3.tgz#8c62168453badef702f34b45b6ee899574a6a65d"
+prettier@1.16.4:
+  version "1.16.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.4.tgz#73e37e73e018ad2db9c76742e2647e21790c9717"
 
 progress@^2.0.0:
   version "2.0.0"