diff --git a/Gemfile b/Gemfile
index 4bf008456e..31f96a0325 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'benchmark'
 gem 'minitest', '5.22.3'
 gem 'pry', '0.14.2'
 gem 'rake', '13.2.1'
-gem 'rubocop', '1.63.4'
+gem 'rubocop', '1.64.0'
 gem 'rubocop-minitest', '0.35.0'
 gem 'rubocop-rake', '0.6.0'
 gem 'simplecov', '0.22.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3bdad799a3..d21339b8a6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,12 +26,13 @@ GEM
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    racc (1.7.3)
+    racc (1.8.0)
     rainbow (3.1.1)
     rake (13.2.1)
-    regexp_parser (2.9.0)
-    rexml (3.2.6)
-    rubocop (1.63.4)
+    regexp_parser (2.9.2)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
+    rubocop (1.64.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -42,8 +43,8 @@ GEM
       rubocop-ast (>= 1.31.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.31.2)
-      parser (>= 3.3.0.4)
+    rubocop-ast (1.31.3)
+      parser (>= 3.3.1.0)
     rubocop-minitest (0.35.0)
       rubocop (>= 1.61, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
@@ -56,11 +57,10 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
+    strscan (3.1.0)
     test-unit (3.6.2)
       power_assert
     timecop (0.9.8)
-    tzinfo (2.0.6)
-      concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)
     yard (0.9.36)
 
@@ -74,13 +74,12 @@ DEPENDENCIES
   minitest (= 5.22.3)
   pry (= 0.14.2)
   rake (= 13.2.1)
-  rubocop (= 1.63.4)
+  rubocop (= 1.64.0)
   rubocop-minitest (= 0.35.0)
   rubocop-rake (= 0.6.0)
   simplecov (= 0.22.0)
   test-unit (= 3.6.2)
   timecop (= 0.9.8)
-  tzinfo (= 2.0.6)
   yard (= 0.9.36)
 
 BUNDLED WITH