diff --git a/Gemfile.lock b/Gemfile.lock
index 9b2d01340..5f89d3ea6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/soutaro/steep.git
-  revision: c8549eae3ca6aa7e93d225d69fa909593f6938d1
+  revision: 86f2b023c454f84964c6bab4aef0aafb0610c088
   specs:
     steep (2.0.0.dev)
       activesupport (>= 5.1)
@@ -49,7 +49,7 @@ GEM
       minitest (>= 5.1)
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
-    addressable (2.8.8)
+    addressable (2.8.9)
       public_suffix (>= 2.0.2, < 8.0)
     ast (2.4.3)
     base64 (0.3.0)
@@ -92,6 +92,8 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
     marcel (1.1.0)
+    mcp (0.8.0)
+      json-schema (>= 4.1)
     memory_profiler (1.1.0)
     minitest (6.0.2)
       drb (~> 2.0)
@@ -144,14 +146,15 @@ GEM
     rspec-expectations (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-mocks (3.13.7)
+    rspec-mocks (3.13.8)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    rubocop (1.84.2)
+    rubocop (1.85.0)
       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)