diff --git a/package.json b/package.json
index 7710698..b9e2111 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,6 @@
     "eslint-plugin-prettier": "^2.7.0",
     "lolex": "^2.7.5",
     "mocha": "^5.2.0",
-    "prettier": "^1.15.3"
+    "prettier": "^2.2.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 5582a99..90f7f1c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1317,9 +1317,9 @@ prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prettier@^1.15.3:
-  version "1.15.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.15.3.tgz#1feaac5bdd181237b54dbe65d874e02a1472786a"
+prettier@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.1.tgz#795a1a78dd52f073da0cd42b21f9c91381923ff5"
 
 process-nextick-args@^2.0.0:
   version "2.0.0"