diff --git a/Gemfile b/Gemfile
index 5c09305..330d903 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem "coderay", "~> 1.1"
 gem "rack-test", "~> 1.1"
 gem "rake", "~> 13.0"
 gem "rspec", "~> 3.12"
-gem "rubocop", "~> 1.55"
+gem "rubocop", "~> 1.57"
 gem "sequel", "~> 5.71"
 gem "simplecov", "~> 0.21"
 gem "sinatra", "~> 3.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index bba1154..dbb90ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     parallel (1.23.0)
-    parser (3.2.2.3)
+    parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     racc (1.7.1)
@@ -26,7 +26,7 @@ GEM
       rack (>= 1.0, < 3)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.8.1)
+    regexp_parser (2.8.2)
     rexml (3.2.6)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
@@ -41,18 +41,18 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.1)
-    rubocop (1.55.1)
+    rubocop (1.57.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.3)
+      parser (>= 3.2.2.4)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
       rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.29.0)
+    rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
@@ -70,7 +70,7 @@ GEM
       tilt (~> 2.0)
     sqlite3 (1.4.2)
     tilt (2.2.0)
-    unicode-display_width (2.4.2)
+    unicode-display_width (2.5.0)
     webrick (1.8.1)
 
 PLATFORMS
@@ -82,7 +82,7 @@ DEPENDENCIES
   rack-test (~> 1.1)
   rake (~> 13.0)
   rspec (~> 3.12)
-  rubocop (~> 1.55)
+  rubocop (~> 1.57)
   sequel (~> 5.71)
   simplecov (~> 0.21)
   sinatra (~> 3.0)