diff --git a/Protobuf-C++.podspec b/Protobuf-C++.podspec
index 1297ad3..72a0c70 100644
--- a/Protobuf-C++.podspec
+++ b/Protobuf-C++.podspec
@@ -8,7 +8,7 @@
   s.cocoapods_version = '>= 1.0'
 
   s.source = { :git => 'https://github.com/google/protobuf.git',
-               :tag => "v21.0-rc2" }
+               :tag => "v#{s.version}" }
 
   s.source_files = 'src/google/protobuf/*.{h,cc,inc}',
                    'src/google/protobuf/stubs/*.{h,cc}',