diff --git a/Gemfile.lock b/Gemfile.lock
index ec6e48fe..6b43a9b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -500,7 +500,8 @@ GEM
       rspec-mocks (~> 3.10)
       rspec-support (~> 3.10)
     rspec-support (3.11.0)
-    rubocop (1.30.1)
+    rubocop (1.31.1)
+      json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.1.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -599,7 +600,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.8.2)
-    unicode-display_width (2.1.0)
+    unicode-display_width (2.2.0)
     unicode_utils (1.4.0)
     unobtrusive_flash (3.3.1)
       railties