diff --git a/ios/flutter_line_sdk.podspec b/ios/flutter_line_sdk.podspec
index f13cd4d..58e5c4c 100644
--- a/ios/flutter_line_sdk.podspec
+++ b/ios/flutter_line_sdk.podspec
@@ -15,7 +15,7 @@ Swift.
   s.dependency 'LineSDKSwift', '~> 5.13'
 
   s.swift_version         = "5.0"
-  s.swift_versions        = ["6.0", "5.0", "4.2"]
+  s.swift_versions        = ["5.0", "4.2"]
 
   s.ios.deployment_target = '13.0'
 end