diff --git a/sync_ntnu_personal_data.gemspec b/sync_ntnu_personal_data.gemspec
index 1b3b043..6a30367 100644
--- a/sync_ntnu_personal_data.gemspec
+++ b/sync_ntnu_personal_data.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
 
   spec.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
 
-  spec.add_dependency "rails", "~> 5.2.0"
+  spec.add_dependency "rails", "~> 4.1.0"
   spec.add_dependency "tiny_tds", "~> 2.1.2"
   spec.add_dependency "mongoid", "~> 4.0.2"