diff --git a/RailsProjects/alpha-blog/Gemfile.lock b/RailsProjects/alpha-blog/Gemfile.lock
index 3ae4bab..fb1b079 100644
--- a/RailsProjects/alpha-blog/Gemfile.lock
+++ b/RailsProjects/alpha-blog/Gemfile.lock
@@ -165,13 +165,6 @@ GEM
       unicode-display_width (>= 1.4.0, < 2.0)
     rubocop-ast (1.1.1)
       parser (>= 2.7.1.5)
-    rubocop-performance (1.9.0)
-      rubocop (>= 0.90.0, < 2.0)
-      rubocop-ast (>= 0.4.0)
-    rubocop-rails (2.8.1)
-      activesupport (>= 4.2.0)
-      rack (>= 1.1)
-      rubocop (>= 0.87.0)
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
     rubyzip (2.3.0)
@@ -208,7 +201,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.8)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.7.0)
     web-console (4.1.0)
@@ -248,8 +241,6 @@ DEPENDENCIES
   puma (~> 3.11)
   rails (~> 6.0.0)
   rubocop (~> 1.3)
-  rubocop-performance (~> 1.9)
-  rubocop-rails (~> 2.8)
   rufo (~> 0.12.0)
   sass-rails (~> 5)
   selenium-webdriver