diff --git a/Appraisals b/Appraisals
index df1ce8a..dc35fc1 100644
--- a/Appraisals
+++ b/Appraisals
@@ -2,7 +2,7 @@ appraise 'rails_4.2' do
   gem 'nokogiri', '1.6.8.1', platforms: %i[ruby_19]
   gem 'mime-types', '~> 2', platforms: %i[ruby_19 jruby]
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '4.2.5'
+  gem 'rails', '~> 4.2.11'
   gem 'mongoid', '~> 4.0'
   gem 'sequel'
   gem 'dynamoid', '~> 1', platforms: :ruby
@@ -14,14 +14,14 @@ end
 
 appraise 'rails_4.2_nobrainer' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '4.2.5'
+  gem 'rails', '~> 4.2.11'
   gem 'nobrainer', '~> 0.33.0'
 end
 
 appraise 'rails_4.2_mongoid_5' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
   gem 'mime-types', '~> 2', platforms: %i[ruby_19 jruby]
-  gem 'rails', '4.2.5'
+  gem 'rails', '~> 4.2.11'
   gem 'mongoid', '~> 5.0'
   gem 'activerecord-jdbcsqlite3-adapter', '1.3.24', platforms: :jruby
   gem "after_commit_everywhere", "~> 1.0"
@@ -29,7 +29,7 @@ end
 
 appraise 'rails_5.0' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '5.0.0'
+  gem 'rails', '~> 5.0.7'
   gem 'mongoid', '~> 6.0'
   gem 'sequel'
   gem 'dynamoid', '~> 1.3', platforms: :ruby
@@ -40,13 +40,13 @@ end
 
 appraise 'rails_5.0_nobrainer' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '5.0.0'
+  gem 'rails', '~> 5.0.7'
   gem 'nobrainer', '~> 0.33.0'
 end
 
 appraise 'rails_5.1' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '5.1'
+  gem 'rails', '~> 5.1.7'
   gem 'mongoid', '~>6.0'
   gem 'sequel'
   gem 'dynamoid', '~> 1.3', platforms: :ruby
@@ -57,7 +57,7 @@ end
 
 appraise 'rails_5.2' do
   gem 'sqlite3', '~> 1.3.5', platforms: :ruby
-  gem 'rails', '5.2'
+  gem 'rails', '~> 5.2.4'
   gem 'mongoid', '~>6.0'
   gem 'sequel'
   gem 'dynamoid', '~>2.2', platforms: :ruby
@@ -67,7 +67,7 @@ appraise 'rails_5.2' do
 end
 
 appraise 'rails_6.0' do
-  gem 'rails', '6.0'
+  gem 'rails', '~> 6.0.3'
   gem 'mongoid', '~>7.0', '>= 7.0.5'
   gem 'sequel'
   gem 'dynamoid', '~>3.3', platforms: :ruby
diff --git a/gemfiles/rails_4.2.gemfile b/gemfiles/rails_4.2.gemfile
index cbb7c9c..603effa 100644
--- a/gemfiles/rails_4.2.gemfile
+++ b/gemfiles/rails_4.2.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "4.2.5"
+gem "rails", "~> 4.2.11"
 gem "after_commit_everywhere", "~> 1.0"
 gem "nokogiri", "1.6.8.1", platforms: [:ruby_19]
 gem "mime-types", "~> 2", platforms: [:ruby_19, :jruby]
diff --git a/gemfiles/rails_4.2_mongoid_5.gemfile b/gemfiles/rails_4.2_mongoid_5.gemfile
index 25f9ac5..fa2f282 100644
--- a/gemfiles/rails_4.2_mongoid_5.gemfile
+++ b/gemfiles/rails_4.2_mongoid_5.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "4.2.5"
+gem "rails", "~> 4.2.11"
 gem "after_commit_everywhere", "~> 1.0"
 gem "mime-types", "~> 2", platforms: [:ruby_19, :jruby]
 gem "mongoid", "~> 5.0"
diff --git a/gemfiles/rails_4.2_nobrainer.gemfile b/gemfiles/rails_4.2_nobrainer.gemfile
index 288b1a4..be5e1c8 100644
--- a/gemfiles/rails_4.2_nobrainer.gemfile
+++ b/gemfiles/rails_4.2_nobrainer.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "4.2.5"
+gem "rails", "~> 4.2.11"
 gem "after_commit_everywhere", "~> 1.0"
 gem "nobrainer", "~> 0.33.0"
 
diff --git a/gemfiles/rails_5.0.gemfile b/gemfiles/rails_5.0.gemfile
index 13ec8e2..a01950c 100644
--- a/gemfiles/rails_5.0.gemfile
+++ b/gemfiles/rails_5.0.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "5.0.0"
+gem "rails", "~> 5.0.7"
 gem "after_commit_everywhere", "~> 1.0"
 gem "mongoid", "~> 6.0"
 gem "sequel"
diff --git a/gemfiles/rails_5.0_nobrainer.gemfile b/gemfiles/rails_5.0_nobrainer.gemfile
index e92ecc6..9e0807a 100644
--- a/gemfiles/rails_5.0_nobrainer.gemfile
+++ b/gemfiles/rails_5.0_nobrainer.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "5.0.0"
+gem "rails", "~> 5.0.7"
 gem "after_commit_everywhere", "~> 1.0"
 gem "nobrainer", "~> 0.33.0"
 
diff --git a/gemfiles/rails_5.1.gemfile b/gemfiles/rails_5.1.gemfile
index 4a8c84b..bed52b7 100644
--- a/gemfiles/rails_5.1.gemfile
+++ b/gemfiles/rails_5.1.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "5.1"
+gem "rails", "~> 5.1.7"
 gem "after_commit_everywhere", "~> 1.0"
 gem "mongoid", "~>6.0"
 gem "sequel"
diff --git a/gemfiles/rails_5.2.gemfile b/gemfiles/rails_5.2.gemfile
index 62eaae4..80a81e4 100644
--- a/gemfiles/rails_5.2.gemfile
+++ b/gemfiles/rails_5.2.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.3.5", platforms: :ruby
-gem "rails", "5.2"
+gem "rails", "~> 5.2.4"
 gem "after_commit_everywhere", "~> 1.0"
 gem "mongoid", "~>6.0"
 gem "sequel"
diff --git a/gemfiles/rails_6.0.gemfile b/gemfiles/rails_6.0.gemfile
index 3aef058..ab4f5c7 100644
--- a/gemfiles/rails_6.0.gemfile
+++ b/gemfiles/rails_6.0.gemfile
@@ -3,7 +3,7 @@
 source "https://rubygems.org"
 
 gem "sqlite3", "~> 1.4", platforms: :ruby
-gem "rails", "6.0"
+gem "rails", "~> 6.0.3"
 gem "after_commit_everywhere", "~> 1.0"
 gem "mongoid", "~>7.0", ">= 7.0.5"
 gem "sequel"