diff --git a/sinatra.gemspec b/sinatra.gemspec
index d0a1dc19..1e789cc7 100644
--- a/sinatra.gemspec
+++ b/sinatra.gemspec
@@ -17,6 +17,6 @@ Gem::Specification.new 'sinatra', Sinatra::VERSION do |s|
 
   s.add_dependency 'rack', '~> 2.0'
   s.add_dependency 'tilt', '~> 2.0'
-  s.add_dependency 'rack-protection', '~> 2.0'
+  s.add_dependency 'rack-protection', Sinatra::VERSION
   s.add_dependency 'mustermann',  '1.0.0.beta1'
 end