diff --git a/Gemfile b/Gemfile
index b6880a0a3..66f301f3f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,3 +7,7 @@ if RUBY_VERSION <= '2.7'
 end
 
 gemspec
+
+group :development, :test do
+  gem "base64"
+end