diff --git a/RxBlocking.podspec b/RxBlocking.podspec
index 68a196dfc..a9e5116e3 100644
--- a/RxBlocking.podspec
+++ b/RxBlocking.podspec
@@ -17,5 +17,5 @@ Pod::Spec.new do |s|
 
   s.source_files          = 'RxBlocking/**/*.swift'
 
-  s.dependency 'RxSwift'
+  s.dependency 'RxSwift', '~> 2.0-alpha'
 end
diff --git a/RxCocoa.podspec b/RxCocoa.podspec
index f301c3fef..8ea47abbf 100644
--- a/RxCocoa.podspec
+++ b/RxCocoa.podspec
@@ -21,5 +21,5 @@ Pod::Spec.new do |s|
   s.ios.source_files      = 'RxCocoa/iOS/**/*.swift'
   s.osx.source_files      = 'RxCocoa/OSX/**/*.swift'
 
-  s.dependency 'RxSwift'
+  s.dependency 'RxSwift', '~> 2.0-alpha'
 end