diff --git a/Gemfile b/Gemfile
index cff34fa2..feab8bf5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ group :default do
   if rack_version = ENV['RACK_VERSION']
     gem 'rack', rack_version
   else
-    gem 'rack', '~> 2.2.18'
+    gem 'rack', '~> 2.2.19'
   end
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b69f3a2..88a66875 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,7 +6,7 @@ GEM
       rake
       thor (>= 0.14.0)
     diff-lcs (1.6.2)
-    rack (2.2.18)
+    rack (2.2.19)
     rake (13.3.0)
     rspec (3.13.1)
       rspec-core (~> 3.13.0)
@@ -33,6 +33,6 @@ PLATFORMS
 
 DEPENDENCIES
   appraisal
-  rack (~> 2.2.18)
+  rack (~> 2.2.19)
   rake (~> 13.3)
   rspec
diff --git a/examples/camping/Gemfile b/examples/camping/Gemfile
index e74109b5..18f4b16b 100644
--- a/examples/camping/Gemfile
+++ b/examples/camping/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rack', '~> 2.2.18'
+gem 'rack', '~> 3.2.2'
 gem 'rackup'
 gem 'camping', '< 3'
 gem 'markaby'
diff --git a/examples/camping/Gemfile.lock b/examples/camping/Gemfile.lock
index 4f82f895..7bf43deb 100644
--- a/examples/camping/Gemfile.lock
+++ b/examples/camping/Gemfile.lock
@@ -24,14 +24,12 @@ GEM
     markaby (0.9.4)
       builder
     ostruct (0.6.2)
-    rack (2.2.18)
-    rackup (1.0.1)
-      rack (< 3)
-      webrick
+    rack (3.2.2)
+    rackup (2.2.1)
+      rack (>= 3)
     rake (13.3.0)
-    rexml (3.4.3)
-    rubyzip (3.1.0)
-    webrick (1.9.1)
+    rexml (3.4.4)
+    rubyzip (3.1.1)
 
 PLATFORMS
   java
@@ -41,7 +39,7 @@ DEPENDENCIES
   camping (< 3)
   jruby-jars (< 10)
   markaby
-  rack (~> 2.2.18)
+  rack (~> 3.2.2)
   rackup
   warbler!
 
diff --git a/examples/rails7/Gemfile b/examples/rails7/Gemfile
index 028de30d..2a694402 100644
--- a/examples/rails7/Gemfile
+++ b/examples/rails7/Gemfile
@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 7.2.2", ">= 7.2.2.2"
-gem "rack", "~> 2.2.0"
+gem "rack", "~> 2.2.19"
 gem "sprockets-rails"
 
 group :development do
diff --git a/examples/rails7/Gemfile.lock b/examples/rails7/Gemfile.lock
index 9949b505..e0dcb709 100644
--- a/examples/rails7/Gemfile.lock
+++ b/examples/rails7/Gemfile.lock
@@ -74,21 +74,23 @@ GEM
       tzinfo (~> 2.0, >= 2.0.5)
     base64 (0.3.0)
     benchmark (0.4.1)
-    bigdecimal (3.2.3-java)
+    bigdecimal (3.3.0)
+    bigdecimal (3.3.0-java)
     builder (3.3.0)
-    cgi (0.5.0-java)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.4)
     crass (1.0.6)
+    date (3.4.1)
     date (3.4.1-java)
     drb (2.2.3)
-    erb (4.0.4-java)
-      cgi (>= 0.3.3)
+    erb (5.0.3)
+    erb (5.0.3-java)
     erubi (1.13.1)
-    globalid (1.2.1)
+    globalid (1.3.0)
       activesupport (>= 6.1)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
+    io-console (0.8.1)
     io-console (0.8.1-java)
     irb (1.15.2)
       pp (>= 0.6.0)
@@ -105,10 +107,10 @@ GEM
       net-imap
       net-pop
       net-smtp
-    marcel (1.0.4)
+    marcel (1.1.0)
     mini_mime (1.1.5)
     minitest (5.25.5)
-    net-imap (0.5.10)
+    net-imap (0.5.12)
       date
       net-protocol
     net-pop (0.1.2)
@@ -117,17 +119,24 @@ GEM
       timeout
     net-smtp (0.5.1)
       net-protocol
+    nio4r (2.7.4)
     nio4r (2.7.4-java)
-    nokogiri (1.18.9-java)
+    nokogiri (1.18.10-java)
       racc (~> 1.4)
-    pp (0.6.2)
+    nokogiri (1.18.10-x86_64-linux-gnu)
+      racc (~> 1.4)
+    pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
+    psych (5.2.6)
+      date
+      stringio
     psych (5.2.6-java)
       date
       jar-dependencies (>= 0.1.7)
+    racc (1.8.1)
     racc (1.8.1-java)
-    rack (2.2.18)
+    rack (2.2.19)
     rack-session (1.0.2)
       rack (< 3)
     rack-test (2.2.0)
@@ -165,9 +174,10 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.3.0)
-    rdoc (6.14.2)
+    rdoc (6.15.0)
       erb
       psych (>= 4.0.0)
+      tsort
     reline (0.6.2)
       io-console (~> 0.5)
     securerandom (0.4.1)
@@ -179,24 +189,30 @@ GEM
       actionpack (>= 6.1)
       activesupport (>= 6.1)
       sprockets (>= 3.0.0)
+    stringio (3.1.7)
     thor (1.4.0)
     timeout (0.4.3)
+    tsort (0.2.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     useragent (0.16.11)
     webrick (1.9.1)
+    websocket-driver (0.8.0)
+      base64
+      websocket-extensions (>= 0.1.0)
     websocket-driver (0.8.0-java)
       base64
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    zeitwerk (2.6.18)
+    zeitwerk (2.7.3)
 
 PLATFORMS
   universal-java-21
+  x86_64-linux
 
 DEPENDENCIES
   jruby-jars (< 10)
-  rack (~> 2.2.0)
+  rack (~> 2.2.19)
   rails (~> 7.2.2, >= 7.2.2.2)
   sprockets-rails
 
diff --git a/examples/sinatra/Gemfile b/examples/sinatra/Gemfile
index b27bbc79..f66fc6ec 100644
--- a/examples/sinatra/Gemfile
+++ b/examples/sinatra/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 gem 'sinatra'
 gem 'webrick'
 gem 'jruby-rack', '~> 1.2.4'
-gem 'rack', '~> 2.2.0'
+gem 'rack', '~> 3.2.2'
 
 group :development do
   gem 'jruby-jars', '< 10'
diff --git a/examples/sinatra/Gemfile.lock b/examples/sinatra/Gemfile.lock
index a2111430..54b523ba 100644
--- a/examples/sinatra/Gemfile.lock
+++ b/examples/sinatra/Gemfile.lock
@@ -4,17 +4,24 @@ GEM
     base64 (0.3.0)
     jruby-jars (9.4.14.0)
     jruby-rack (1.2.5)
+    logger (1.7.0)
     mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.18)
-    rack-protection (3.2.0)
+    rack (3.2.2)
+    rack-protection (4.1.1)
       base64 (>= 0.1.0)
-      rack (~> 2.2, >= 2.2.4)
+      logger (>= 1.6.0)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.1.1)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
     ruby2_keywords (0.0.5)
-    sinatra (3.2.0)
+    sinatra (4.1.1)
+      logger (>= 1.6.0)
       mustermann (~> 3.0)
-      rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.2.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.1.1)
+      rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
     tilt (2.6.1)
     webrick (1.9.1)
@@ -26,7 +33,7 @@ PLATFORMS
 DEPENDENCIES
   jruby-jars (< 10)
   jruby-rack (~> 1.2.4)
-  rack (~> 2.2.0)
+  rack (~> 3.2.2)
   sinatra
   webrick