diff --git a/Gemfile b/Gemfile
index af246503..84e9562c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
-gem 'cocoapods', :git => 'https://github.com/CocoaPods/CocoaPods.git'
-gem 'cocoapods-generate', '2.2.5', :git => 'https://github.com/square/cocoapods-generate.git'
-gem 'xcodeproj', '1.25.0', :git => 'https://github.com/CocoaPods/Xcodeproj.git'
\ No newline at end of file
+gem 'cocoapods', '~> 1.15', '>= 1.15.2'
+gem 'cocoapods-generate', '~> 2.2', '>= 2.2.5'
+gem 'xcodeproj', '~> 1.25', '>= 1.25.1'
\ No newline at end of file