Gemfile in attr_encryption-0.1.2 vs Gemfile in attr_encryption-0.2.0

@@ -1,13 +1,13 @@
 source "http://rubygems.org"
 # Add dependencies required to use your gem here.
 # Example:
-gem "activesupport", ">= 3.2.14"
+gem "activesupport", "~> 5.1"
 
 # Add dependencies to develop your gem here.
 # Include everything needed to run rake, tests, features, etc.
 group :development do
   gem "rspec"
   gem "rdoc", "~> 4.1"
-  gem "bundler", "~> 1.0"
-  gem "jeweler", "~> 1.8.7"
+  gem "bundler", "~> 1.15"
+  gem "jeweler", "~> 2.3"
 end