diff --git a/.eslintrc.json b/.eslintrc.json
index 4ce2a51b7..c706584a8 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -12,5 +12,8 @@
     "standard",
     "jest"
   ],
-  "parser": "babel-eslint"
+  "parser": "babel-eslint",
+  "rules": {
+    "max-len": ["warn", { "code": 120 }]
+  }
 }
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 000000000..c81f9a766
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1 @@
+printWidth: 120