diff --git a/Gemfile b/Gemfile
index b8bcc0f..015b1c1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,5 +12,5 @@ group :test do
   gem 'rb-readline'
   gem 'rspec', '~> 3.9.0'
   gem 'rubocop', '~> 0.52'
-  gem 'webmock', '1.21.0'
+  gem 'webmock', '3.9.3'
 end