diff --git a/cf-uaac.gemspec b/cf-uaac.gemspec
index 9c2e67f..88a10bf 100644
--- a/cf-uaac.gemspec
+++ b/cf-uaac.gemspec
@@ -31,7 +31,7 @@ Gem::Specification.new do |s|
   s.require_paths = ['lib']
 
   # dependencies
-  s.add_runtime_dependency 'cf-uaa-lib', '~> 4.0.4'
+  s.add_runtime_dependency 'cf-uaa-lib', '>= 4.0.3', '< 4.0.5'
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.12'
   s.add_development_dependency 'simplecov', '~> 0.22.0'