diff --git a/README.md b/README.md
index 3c89325b..af16a0bf 100644
--- a/README.md
+++ b/README.md
@@ -474,7 +474,7 @@ $ pod install
 Add this to `Cartfile`
 
 ```
-git "git@github.com:ReactiveX/RxSwift.git" "2.0.0-alpha.3"
+git "git@github.com:ReactiveX/RxSwift.git" "2.0.0-alpha.4"
 ```
 
 ```
diff --git a/RxBlocking.podspec b/RxBlocking.podspec
index fdfb7aa5..f7d811f2 100644
--- a/RxBlocking.podspec
+++ b/RxBlocking.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "RxBlocking"
-  s.version          = "2.0.0-alpha.3"
+  s.version          = "2.0.0-alpha.4"
   s.summary          = "RxSwift Blocking operatos"
   s.description      = <<-DESC
                         Set of blocking operators for unit testing
diff --git a/RxCocoa.podspec b/RxCocoa.podspec
index c2360877..35bd3042 100644
--- a/RxCocoa.podspec
+++ b/RxCocoa.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "RxCocoa"
-  s.version          = "2.0.0-alpha.3"
+  s.version          = "2.0.0-alpha.4"
   s.summary          = "RxSwift Cocoa extensions"
   s.description      = <<-DESC
 			* UI extensions
diff --git a/RxSwift.podspec b/RxSwift.podspec
index f2c47df8..9a8198ac 100644
--- a/RxSwift.podspec
+++ b/RxSwift.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "RxSwift"
-  s.version          = "2.0.0-alpha.3"
+  s.version          = "2.0.0-alpha.4"
   s.summary          = "Microsoft Reactive Extensions (Rx) for Swift and iOS/OSX platform"
   s.description      = <<-DESC
 			This is a Swift port of Reactive extensions.