diff --git a/where_exists.gemspec b/where_exists.gemspec
index bb680be..b55b2ad 100644
--- a/where_exists.gemspec
+++ b/where_exists.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
   s.files = Dir["lib/**/*", "MIT-LICENSE", "Rakefile", "README.markdownq"]
   s.test_files = Dir["test/**/*"]
 
-  s.add_dependency "rails", "= 3.2.22", "< 6"
+  s.add_dependency "rails", ">= 3.2.22", "< 6"
 
   s.add_development_dependency "sqlite3", "~> 1.3"
   s.add_development_dependency "minitest"