diff --git a/configcat.gemspec b/configcat.gemspec
index 5e2c7ab..e637e83 100644
--- a/configcat.gemspec
+++ b/configcat.gemspec
@@ -24,6 +24,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "codecov", "~> 0.5"
-  spec.add_development_dependency "webmock", "~> 3.0"
+  spec.add_development_dependency "webmock", "~> 3.3"
   spec.add_development_dependency "rubocop"
 end