diff --git a/Gemfile.lock b/Gemfile.lock
index 1555c9b..8ffbe91 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -227,8 +227,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.2.2)
-      rake
+    rainbow (3.0.0)
     raindrops (0.19.0)
     rake (12.3.0)
     rb-fsevent (0.10.2)
@@ -259,11 +258,11 @@ GEM
       rspec-mocks (~> 3.7.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.0)
-    rubocop (0.51.0)
+    rubocop (0.52.0)
       parallel (~> 1.10)
-      parser (>= 2.3.3.1, < 3.0)
+      parser (>= 2.4.0.2, < 3.0)
       powerpack (~> 0.1)
-      rainbow (>= 2.2.2, < 3.0)
+      rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     rubocop-github (0.6.0)