diff --git a/examples/tracing/ruby/Gemfile b/examples/tracing/ruby/Gemfile
index 7f0fe19d03..ec997e62c4 100644
--- a/examples/tracing/ruby/Gemfile
+++ b/examples/tracing/ruby/Gemfile
@@ -5,7 +5,7 @@ source "https://rubygems.org"
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 gem 'pyroscope', '= 0.6.4'
-gem "sinatra", "~> 4.1"
+gem "sinatra", "~> 4.2"
 gem "thin", "~> 2.0"
 gem 'pyroscope-otel'
 gem 'opentelemetry-sdk'
diff --git a/examples/tracing/ruby/Gemfile.lock b/examples/tracing/ruby/Gemfile.lock
index 7314c914bb..6aa392b54c 100644
--- a/examples/tracing/ruby/Gemfile.lock
+++ b/examples/tracing/ruby/Gemfile.lock
@@ -37,7 +37,7 @@ GEM
     googleapis-common-protos-types (1.16.0)
       google-protobuf (>= 3.18, < 5.a)
     logger (1.7.0)
-    mustermann (3.0.3)
+    mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.7.4)
     opentelemetry-api (1.5.0)
@@ -74,8 +74,8 @@ GEM
     pyroscope-otel (0.1.4)
       opentelemetry-api (~> 1.1)
       pyroscope (>= 0.5.1, < 1.0)
-    rack (3.1.16)
-    rack-protection (4.1.1)
+    rack (3.2.3)
+    rack-protection (4.2.0)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)
       rack (>= 3.0.0, < 4)
@@ -86,11 +86,11 @@ GEM
       rack (>= 3)
     rake (13.2.1)
     ruby2_keywords (0.0.5)
-    sinatra (4.1.1)
+    sinatra (4.2.0)
       logger (>= 1.6.0)
       mustermann (~> 3.0)
       rack (>= 3.0.0, < 4)
-      rack-protection (= 4.1.1)
+      rack-protection (= 4.2.0)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
     thin (2.0.1)
@@ -98,7 +98,7 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       logger
       rack (>= 1, < 4)
-    tilt (2.6.0)
+    tilt (2.6.1)
 
 PLATFORMS
   aarch64-linux
@@ -123,7 +123,7 @@ DEPENDENCIES
   pyroscope (= 0.6.4)
   pyroscope-otel
   rackup (~> 2.2)
-  sinatra (~> 4.1)
+  sinatra (~> 4.2)
   thin (~> 2.0)
 
 BUNDLED WITH