diff --git a/samples/client/petstore/objc/Podfile.lock b/samples/client/petstore/objc/Podfile.lock
index e9e593cf299..fe43a2c80eb 100644
--- a/samples/client/petstore/objc/Podfile.lock
+++ b/samples/client/petstore/objc/Podfile.lock
@@ -33,4 +33,4 @@ SPEC CHECKSUMS:
   ISO8601: 962282de75074c38bbfaa7b133b0e743ed6deb8d
   JSONModel: ec77e9865236a7a09d9cf7668df6b4b328d9ec1d
 
-COCOAPODS: 0.37.1
+COCOAPODS: 0.36.0