diff --git a/example/ios/Gemfile.lock b/example/ios/Gemfile.lock
index 17cd6bb..d8c1034 100644
--- a/example/ios/Gemfile.lock
+++ b/example/ios/Gemfile.lock
@@ -89,6 +89,7 @@ GEM
 
 PLATFORMS
   ruby
+  x86_64-darwin-19
 
 DEPENDENCIES
   cocoapods (= 1.10.2)