diff --git a/Gemfile.lock b/Gemfile.lock
index 7b44b67..82fd9af 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 3.0)
       netrc (~> 0.7)
-    rubocop (0.30.1)
+    rubocop (0.31.0)
       astrolabe (~> 1.3)
       parser (>= 2.2.2.1, < 3.0)
       powerpack (~> 0.1)