diff --git a/package.json b/package.json
index 0c30734e..3acb0fcc 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "nock": "^9.0.2",
     "nyc": "^11.2.1",
     "p-retry": "^1.0.0",
-    "prettier": "~1.8.0",
+    "prettier": "~1.9.0",
     "proxyquire": "^1.8.0",
     "sinon": "^4.0.0",
     "tempy": "^0.2.1",