diff --git a/blacklight-spotlight.gemspec b/blacklight-spotlight.gemspec
index d1f02310b..9e5cb5c78 100644
--- a/blacklight-spotlight.gemspec
+++ b/blacklight-spotlight.gemspec
@@ -30,7 +30,7 @@ these collections.)
   s.add_dependency 'carrierwave', '~> 2.2'
   s.add_dependency 'clipboard-rails', '~> 1.5'
   s.add_dependency 'csv'
-  s.add_dependency 'devise', '~> 4.9'
+  s.add_dependency 'devise', '>= 4.9', '< 6'
   s.add_dependency 'devise_invitable'
   s.add_dependency 'faraday'
   s.add_dependency 'faraday-follow_redirects'