diff --git a/integration/testdata/default_app/Gemfile b/integration/testdata/default_app/Gemfile
index 1124191..6c07f9b 100644
--- a/integration/testdata/default_app/Gemfile
+++ b/integration/testdata/default_app/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org' do
-  ruby '~> 2.0'
+  ruby '~> 3'
 
   gem 'puma'
 end
diff --git a/integration/testdata/sinatra_app/Gemfile b/integration/testdata/sinatra_app/Gemfile
index d068b50..b8b7283 100644
--- a/integration/testdata/sinatra_app/Gemfile
+++ b/integration/testdata/sinatra_app/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org' do
-  ruby '~> 2.0'
+  ruby '~> 3'
 
   gem 'puma'
   gem 'sinatra'
diff --git a/integration/testdata/sinatra_app/Gemfile.lock b/integration/testdata/sinatra_app/Gemfile.lock
index 6613757..ec37615 100644
--- a/integration/testdata/sinatra_app/Gemfile.lock
+++ b/integration/testdata/sinatra_app/Gemfile.lock
@@ -1,31 +1,34 @@
+GEM
+  specs:
+
 GEM
   remote: https://rubygems.org/
   specs:
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.5.2)
-    puma (4.3.5)
+    nio4r (2.5.8)
+    puma (6.0.2)
       nio4r (~> 2.0)
-    rack (2.2.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.6.2)
+    rack-protection (3.0.5)
       rack
-    ruby2_keywords (0.0.2)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    ruby2_keywords (0.0.5)
+    sinatra (3.0.5)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.5)
       tilt (~> 2.0)
-    tilt (2.0.10)
+    tilt (2.0.11)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  puma
-  sinatra
+  puma!
+  sinatra!
 
 RUBY VERSION
-   ruby 2.6.3p62
+   ruby 3.1.3p185
 
 BUNDLED WITH
-   2.1.4
+   2.3.26