diff --git a/metadata.rb b/metadata.rb
index 523d2bb..2242832 100644
--- a/metadata.rb
+++ b/metadata.rb
@@ -12,4 +12,4 @@ version '18.0.0'
   supports os
 end
 
-gem 'fog-openstack', '>=0.2.1'
+gem 'fog-openstack', '< 1.0.0'