diff --git a/Gemfile b/Gemfile
index 2a4b359..d875ac9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,4 +5,4 @@ source "https://rubygems.org"
 gem "rake", "~> 13.3.0"
 gem "rexml", ">= 3.3.2", "< 4.0"
 gem "rspec", "~> 3.13.0"
-gem "rubocop", "~> 1.85.0", require: false
+gem "rubocop", "~> 1.86.0", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 9b9d8eb..60dadbd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,25 +1,16 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.9)
-      public_suffix (>= 2.0.2, < 8.0)
     ast (2.4.3)
-    bigdecimal (4.0.1)
     diff-lcs (1.6.2)
     json (2.19.2)
-    json-schema (6.2.0)
-      addressable (~> 2.8)
-      bigdecimal (>= 3.1, < 5)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
-    mcp (0.9.0)
-      json-schema (>= 4.1)
     parallel (1.27.0)
     parser (3.3.10.2)
       ast (~> 2.4.1)
       racc
     prism (1.9.0)
-    public_suffix (7.0.5)
     racc (1.8.1)
     rainbow (3.1.1)
     rake (13.3.1)
@@ -38,11 +29,10 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    rubocop (1.85.1)
+    rubocop (1.86.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
-      mcp (~> 0.6)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
@@ -66,7 +56,7 @@ DEPENDENCIES
   rake (~> 13.3.0)
   rexml (>= 3.3.2, < 4.0)
   rspec (~> 3.13.0)
-  rubocop (~> 1.85.0)
+  rubocop (~> 1.86.0)
 
 BUNDLED WITH
    2.7.2