diff --git a/Gemfile.lock b/Gemfile.lock
index a0a16f0..a0fba80 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    pg_tasks (2.1.1.pre.0)
-      rails (~> 5.1, >= 5.1.3)
+    pg_tasks (2.2.0.pre.0)
+      rails (~> 5.0)
 
 GEM
   remote: https://rubygems.org/
diff --git a/pg_tasks.gemspec b/pg_tasks.gemspec
index 48a7e7a..13440ef 100644
--- a/pg_tasks.gemspec
+++ b/pg_tasks.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.files = Dir['{app,config,db,lib}/**/*', 'MIT-LICENSE', 'Rakefile', 'README.rdoc']
   s.test_files = Dir['test/**/*']
 
-  s.add_dependency 'rails', '~> 5.1', '>= 5.1.3'
+  s.add_dependency 'rails', '~> 5.0'
 
   s.add_development_dependency 'pg'
   s.add_development_dependency 'rubocop'