diff --git a/client/package.json b/client/package.json
index 2e89faf101c..6c175c0423f 100644
--- a/client/package.json
+++ b/client/package.json
@@ -87,7 +87,7 @@
     "karma-webpack": "^2.0.6",
     "phantomjs-polyfill": "0.0.2",
     "phantomjs-prebuilt": "^2.1.7",
-    "prettier": "^1.7.4",
+    "prettier": "^1.9.1",
     "qunitjs": "^2.4.1",
     "sinon": "^4.1.2",
     "vue-loader": "^13.5.0",
diff --git a/client/yarn.lock b/client/yarn.lock
index d8c0f31d0ef..1550f2e6acc 100644
--- a/client/yarn.lock
+++ b/client/yarn.lock
@@ -5894,10 +5894,14 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
-prettier@^1.7.0, prettier@^1.7.4:
+prettier@^1.7.0:
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.8.2.tgz#bff83e7fd573933c607875e5ba3abbdffb96aeb8"
 
+prettier@^1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.9.1.tgz#41638a0d47c1efbd1b7d5a742aaa5548eab86d70"
+
 pretty-bytes@^1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-1.0.4.tgz#0a22e8210609ad35542f8c8d5d2159aff0751c84"