diff --git a/gemfiles/activerecord_5.1.5.gemfile b/gemfiles/activerecord_5.1.5.gemfile
index f77a607..bc93e04 100644
--- a/gemfiles/activerecord_5.1.5.gemfile
+++ b/gemfiles/activerecord_5.1.5.gemfile
@@ -5,4 +5,4 @@ source "https://rubygems.org"
 gem "appraisal"
 gem "activerecord", "5.1.5"
 
-gemspec :path => "../"
+gemspec path: "../"
diff --git a/gemfiles/activerecord_5.1.5.gemfile.lock b/gemfiles/activerecord_5.1.5.gemfile.lock
index 3c6f2fb..929275e 100644
--- a/gemfiles/activerecord_5.1.5.gemfile.lock
+++ b/gemfiles/activerecord_5.1.5.gemfile.lock
@@ -1,8 +1,8 @@
 PATH
   remote: ..
   specs:
-    parentry (1.0.1)
-      activerecord (>= 5.1)
+    parentry (1.1.0)
+      activerecord (~> 5.1)
 
 GEM
   remote: https://rubygems.org/
diff --git a/lib/parentry/version.rb b/lib/parentry/version.rb
index 9f56917..20acb79 100644
--- a/lib/parentry/version.rb
+++ b/lib/parentry/version.rb
@@ -1,3 +1,3 @@
 module Parentry
-  VERSION = '1.0.1'
+  VERSION = '1.1.0'
 end
diff --git a/parentry.gemspec b/parentry.gemspec
index 11b194c..d8819a7 100644
--- a/parentry.gemspec
+++ b/parentry.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |spec|
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'activerecord', '>= 5.1'
+  spec.add_dependency 'activerecord', '~> 5.1'
 
   spec.add_development_dependency 'bundler', '~> 1.10'
   spec.add_development_dependency 'rake', '~> 10.0'