diff --git a/Gemfile.lock b/Gemfile.lock
index 92d61cf8a..80773f3bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -336,7 +336,6 @@ GEM
       capybara (>= 2.1, < 4)
       cliver (~> 0.3.1)
       websocket-driver (>= 0.2.0)
-    powerpack (0.1.2)
     psych (3.1.0)
     public_suffix (3.0.3)
     puma (3.12.0)
@@ -416,15 +415,14 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.65.0)
+    rubocop (0.66.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)
-      powerpack (~> 0.1)
       psych (>= 3.1.0)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 1.4.0)
+      unicode-display_width (>= 1.4.0, < 1.6)
     rubocop-rspec (1.32.0)
       rubocop (>= 0.60.0)
     ruby-progressbar (1.10.0)
@@ -490,7 +488,7 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
-    unicode-display_width (1.4.1)
+    unicode-display_width (1.5.0)
     unicorn (5.5.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)