diff --git a/frontend/ios/fastlane/Fastfile b/frontend/ios/fastlane/Fastfile
index fab7574..2722272 100644
--- a/frontend/ios/fastlane/Fastfile
+++ b/frontend/ios/fastlane/Fastfile
@@ -32,7 +32,7 @@ platform :ios do
     sh(
       "sed",
       "-i", 
-      "''", 
+      '\'\'', 
       "s/IOS_GOOGLE_MAPS_API_KEY/#{ENV["IOS_GOOGLE_MAPS_API_KEY"]}/g", 
       "../Runner/AppDelegate.swift"
     )
@@ -78,7 +78,7 @@ platform :ios do
     sh(
       "sed",
       "-i",
-      "''",
+      '\'\'', 
       "s/IOS_GOOGLE_MAPS_API_KEY/#{ENV["IOS_GOOGLE_MAPS_API_KEY"]}/g",
       "../Runner/AppDelegate.swift"
     )