diff --git a/tests/apps/ruby/Gemfile b/tests/apps/ruby/Gemfile
index 9c456a2e6c4..6c499d2a26b 100644
--- a/tests/apps/ruby/Gemfile
+++ b/tests/apps/ruby/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 ruby '2.6.8'
 
-gem 'sinatra', '~>2.1.0'
+gem 'sinatra', '~>3.0.4'
 gem 'thin'
diff --git a/tests/apps/ruby/Gemfile.lock b/tests/apps/ruby/Gemfile.lock
index a05fdae1655..e72caa7de95 100644
--- a/tests/apps/ruby/Gemfile.lock
+++ b/tests/apps/ruby/Gemfile.lock
@@ -3,26 +3,26 @@ GEM
   specs:
     daemons (1.4.0)
     eventmachine (1.2.7)
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.3)
-    rack-protection (2.1.0)
+    rack (2.2.4)
+    rack-protection (3.0.4)
       rack
-    ruby2_keywords (0.0.2)
-    sinatra (2.1.0)
-      mustermann (~> 1.0)
-      rack (~> 2.2)
-      rack-protection (= 2.1.0)
+    ruby2_keywords (0.0.5)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
       tilt (~> 2.0)
     thin (1.8.1)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    tilt (2.0.10)
+    tilt (2.0.11)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  sinatra (~> 2.1.0)
+  sinatra (~> 3.0.4)
   thin