diff --git a/.github/workflows/ios-cd-stage.yml b/.github/workflows/ios-cd-stage.yml
index ec39ce3..95119c0 100644
--- a/.github/workflows/ios-cd-stage.yml
+++ b/.github/workflows/ios-cd-stage.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Select Xcode
         uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: "16.2"
+          xcode-version: "latest-stable"
 
       - name: Install iOS SDK (Retry up to 3 times)
         run: |
diff --git a/.github/workflows/ios_ci.yml b/.github/workflows/ios_ci.yml
index d6d7042..d010712 100644
--- a/.github/workflows/ios_ci.yml
+++ b/.github/workflows/ios_ci.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Select Xcode
         uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: "16.2"
+          xcode-version: "latest-stable"
 
       - name: Debug toolchain
         run: |
diff --git a/Atcha-iOS.xcodeproj/project.pbxproj b/Atcha-iOS.xcodeproj/project.pbxproj
index 790eaf7..5f8095a 100644
--- a/Atcha-iOS.xcodeproj/project.pbxproj
+++ b/Atcha-iOS.xcodeproj/project.pbxproj
@@ -2450,11 +2450,9 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_ENTITLEMENTS = "Atcha-iOS/Atcha-iOS.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Distribution";
-				CODE_SIGN_STYLE = Manual;
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 15;
-				DEVELOPMENT_TEAM = "";
-				"DEVELOPMENT_TEAM[sdk=iphoneos*]" = 23SCTLK482;
+				DEVELOPMENT_TEAM = 23SCTLK482;
 				EXCLUDED_ARCHS = "";
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -2481,7 +2479,6 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.atcha.iOS;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
-				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = "match AppStore com.atcha.iOS";
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
 				SUPPORTS_MACCATALYST = NO;
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index 25bf21e..b0c387c 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -30,7 +30,12 @@ platform :ios do
     )
 
     match(type: "appstore")
-    increment_build_number(xcodeproj: "Atcha-iOS.xcodeproj")
+    latest_build = latest_testflight_build_number(api_key: api_key)
+
+    increment_build_number(
+      build_number: latest_build + 1,
+      xcodeproj: "Atcha-iOS.xcodeproj"
+    )
 
     build_app(
       project: "Atcha-iOS.xcodeproj",  
@@ -47,7 +52,13 @@ platform :ios do
   desc "App Store 업로드 (Submit은 안 함)"
   lane :release do
     match(type: "appstore")
-    increment_build_number(xcodeproj: "Atcha-iOS.xcodeproj")
+
+    latest_build = latest_testflight_build_number(api_key: api_key)
+
+    increment_build_number(
+      build_number: latest_build + 1,
+      xcodeproj: "Atcha-iOS.xcodeproj"
+    )
 
     build_app(
       project: "Atcha-iOS.xcodeproj",