diff --git a/Gemfile b/Gemfile
index a432f52..f182a5a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gemspec
 
 gem "minitest", "~> 5.23"
 gem "rake", "~> 13.2"
-gem "rubocop", "~> 1.63"
+gem "rubocop", "~> 1.64"
 gem "rubocop-minitest", "~> 0.35"
 gem "rubocop-performance", "~> 1.21"
 gem "rubocop-rake", "~> 0.6"
diff --git a/Gemfile.lock b/Gemfile.lock
index 7372a8b..33a89a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,12 +16,13 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    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 (1.63.5)
+    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)
@@ -43,6 +44,7 @@ GEM
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
     ruby-progressbar (1.13.0)
+    strscan (3.1.0)
     unicode-display_width (2.5.0)
 
 PLATFORMS
@@ -53,7 +55,7 @@ DEPENDENCIES
   flatito!
   minitest (~> 5.23)
   rake (~> 13.2)
-  rubocop (~> 1.63)
+  rubocop (~> 1.64)
   rubocop-minitest (~> 0.35)
   rubocop-performance (~> 1.21)
   rubocop-rake (~> 0.6)