diff --git a/Gemfile b/Gemfile
index 82a992fe037147dde7c6b4cd04b09d76e3671902..562f0058b0ece5d0fb1bfbc592f98db3adcce491 100644
--- a/Gemfile
+++ b/Gemfile
@@ -122,7 +122,7 @@ end
 # gems that are necessary for ActiveRecord tests with Oracle database
 if ENV['ORACLE_ENHANCED']
   platforms :ruby do
-    gem 'ruby-oci8', '~> 2.1'
+    gem 'ruby-oci8', '~> 2.2'
   end
   gem 'activerecord-oracle_enhanced-adapter', github: 'rsim/oracle-enhanced', branch: 'master'
 end