diff --git a/android/app/build.gradle b/android/app/build.gradle
index 250dc4e..193d561 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -50,7 +50,7 @@ apply plugin: 'com.google.gms.google-services'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 33
+    compileSdkVersion 34
     ndkVersion flutter.ndkVersion
 
     compileOptions {
@@ -72,7 +72,7 @@ android {
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
         minSdkVersion  21 // flutter.minSdkVersion
-        targetSdkVersion 33
+        targetSdkVersion 34
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 8a76fc3..5577f12 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -74,8 +74,8 @@
             android:name="com.google.firebase.messaging.default_notification_channel_id"
             android:value="taxi_notification" />
     <provider
-        android:name="com.pichillilorenzo.flutter_inappwebview.InAppWebViewFileProvider"
-        android:authorities="${applicationId}.flutter_inappwebview.fileprovider"
+        android:name="com.pichillilorenzo.flutter_inappwebview_android.InAppWebViewFileProvider"
+        android:authorities="${applicationId}.flutter_inappwebview_android.fileprovider"
         android:exported="false"
         android:grantUriPermissions="true">
         <meta-data
diff --git a/android/app/src/main/kotlin/com/example/taxi_app/MainActivity.kt b/android/app/src/main/kotlin/org/sparcs/taxi_app/MainActivity.kt
similarity index 100%
rename from android/app/src/main/kotlin/com/example/taxi_app/MainActivity.kt
rename to android/app/src/main/kotlin/org/sparcs/taxi_app/MainActivity.kt
diff --git a/android/build.gradle b/android/build.gradle
index 9f980fc..51c6b7f 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.9.10'
+    ext.kotlin_version = '1.8.0'
     repositories {
         google()
         mavenCentral()
diff --git a/ios/Flutter/AppFrameworkInfo.plist b/ios/Flutter/AppFrameworkInfo.plist
index 9625e10..7c56964 100644
--- a/ios/Flutter/AppFrameworkInfo.plist
+++ b/ios/Flutter/AppFrameworkInfo.plist
@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>11.0</string>
+  <string>12.0</string>
 </dict>
 </plist>
diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index 8533716..00cc2d8 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -144,6 +144,7 @@
 				9705A1C41CF9048500538489 /* Embed Frameworks */,
 				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
 				327B8813AE4F7CE617097936 /* [CP] Embed Pods Frameworks */,
+				2749C737F1FC177F84FB6A28 /* [firebase_crashlytics] Crashlytics Upload Symbols */,
 			);
 			buildRules = (
 			);
@@ -160,7 +161,7 @@
 		97C146E61CF9000F007C117D /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1430;
+				LastUpgradeCheck = 1510;
 				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
@@ -203,6 +204,29 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
+		2749C737F1FC177F84FB6A28 /* [firebase_crashlytics] Crashlytics Upload Symbols */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"\"${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}\"",
+				"\"${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/\"",
+				"\"${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/Info.plist\"",
+				"\"$(BUILT_PRODUCTS_DIR)/$(EXECUTABLE_PATH)\"",
+				"\"$(PROJECT_DIR)/firebase_app_id_file.json\"",
+			);
+			name = "[firebase_crashlytics] Crashlytics Upload Symbols";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"$PODS_ROOT/FirebaseCrashlytics/upload-symbols\" --flutter-project \"$PROJECT_DIR/firebase_app_id_file.json\" ";
+		};
 		327B8813AE4F7CE617097936 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -348,7 +372,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
@@ -427,7 +451,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -476,7 +500,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
diff --git a/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index a6b826d..5e31d3d 100644
--- a/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1430"
+   LastUpgradeVersion = "1510"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ios/Runner/AppDelegate.swift b/ios/Runner/AppDelegate.swift
index d7deac1..51ea8f7 100644
--- a/ios/Runner/AppDelegate.swift
+++ b/ios/Runner/AppDelegate.swift
@@ -4,7 +4,7 @@ import flutter_local_notifications
 import Firebase
 import FirebaseMessaging
 
-@UIApplicationMain
+@main
 @objc class AppDelegate: FlutterAppDelegate {
   override func application(
     _ application: UIApplication,
diff --git a/lib/main.dart b/lib/main.dart
index 40b3bd9..eede890 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -35,7 +35,7 @@ void main() async {
   };
 
   if (Platform.isAndroid) {
-    await AndroidInAppWebViewController.setWebContentsDebuggingEnabled(true);
+    await InAppWebViewController.setWebContentsDebuggingEnabled(true);
   }
   // await Future.delayed(Duration(seconds: 5));
 
diff --git a/lib/views/taxiView.dart b/lib/views/taxiView.dart
index b5e1327..d1efd86 100644
--- a/lib/views/taxiView.dart
+++ b/lib/views/taxiView.dart
@@ -188,7 +188,7 @@ class TaxiView extends HookWidget {
     useEffect(() {
       if (url.value != '' && _controller.value != null) {
         _controller.value!
-            .loadUrl(urlRequest: URLRequest(url: Uri.parse(url.value)))
+            .loadUrl(urlRequest: URLRequest(url: WebUri(url.value)))
             .then((value) {});
       }
     }, [LoadCount.value]);
@@ -248,7 +248,7 @@ class TaxiView extends HookWidget {
               await Token().deleteAll();
             }
             await _cookieManager.deleteCookie(
-                url: Uri.parse(RemoteConfigController().backUrl),
+                url: WebUri(RemoteConfigController().backUrl),
                 name: "connect.sid");
             isAuthLogin.value = false;
             isLogin.value = false;
@@ -499,29 +499,28 @@ class TaxiView extends HookWidget {
 
     return SafeArea(
         child: Stack(children: [
-      WillPopScope(
-          onWillPop: () =>
+      PopScope(
+          canPop: false,
+          onPopInvokedWithResult: (_, __) =>
               _goBack(context, backCount, isAuthLogin, _controller.value),
           child: Scaffold(
             body: InAppWebView(
-                initialOptions: InAppWebViewGroupOptions(
-                    crossPlatform: InAppWebViewOptions(
-                        useShouldOverrideUrlLoading: true,
-                        applicationNameForUserAgent: "taxi-app-webview/" +
-                            (Platform.isAndroid ? "android" : "ios"),
-                        resourceCustomSchemes: [
-                          'intent',
-                          'supertoss',
-                          'uber',
-                          'tmoneyonda',
-                          'kakaotalk',
-                          'kakaot'
-                        ]),
-                    android: AndroidInAppWebViewOptions(
-                        useHybridComposition: true,
-                        overScrollMode:
-                            AndroidOverScrollMode.OVER_SCROLL_NEVER),
-                    ios: IOSInAppWebViewOptions(disallowOverScroll: true)),
+                initialSettings: InAppWebViewSettings(
+                    useShouldOverrideUrlLoading: true,
+                    applicationNameForUserAgent: "taxi-app-webview/" +
+                        (Platform.isAndroid ? "android" : "ios"),
+                    resourceCustomSchemes: [
+                      'intent',
+                      'supertoss',
+                      'uber',
+                      'tmoneyonda',
+                      'kakaotalk',
+                      'kakaot'
+                    ],
+                    useHybridComposition: true,
+                    overScrollMode: OverScrollMode.NEVER,
+                    disallowOverScroll: true),
+
                 // initialUrlRequest: URLRequest(url: Uri.parse(address)),
                 shouldOverrideUrlLoading: (controller, navigationAction) async {
                   var newHeaders = Map<String, String>.from(
@@ -587,9 +586,9 @@ class TaxiView extends HookWidget {
                           isAuthLogin.value = false;
                           await _controller.value?.loadUrl(
                               urlRequest: URLRequest(
-                                  url: Uri.parse(RemoteConfigController()
-                                      .frontUrl
-                                      .toString())));
+                                  url: WebUri(
+                                      (RemoteConfigController().frontUrl)
+                                          .toString())));
                         } catch (e) {
                           // TODO
                           Fluttertoast.showToast(
@@ -715,18 +714,17 @@ class TaxiView extends HookWidget {
                       sessionToken.value != '' &&
                       uri?.origin == Uri.parse(address).origin &&
                       (await _cookieManager.getCookie(
-                                  url: Uri.parse(
-                                      RemoteConfigController().backUrl),
+                                  url: WebUri(RemoteConfigController().backUrl),
                                   name: "connect.sid"))
                               ?.value !=
                           sessionToken.value) {
                     try {
                       await _controller.value?.stopLoading();
                       await _cookieManager.deleteCookie(
-                          url: Uri.parse(RemoteConfigController().backUrl),
+                          url: WebUri(RemoteConfigController().backUrl),
                           name: "connect.sid");
                       await _cookieManager.setCookie(
-                        url: Uri.parse(RemoteConfigController().backUrl),
+                        url: WebUri(RemoteConfigController().backUrl),
                         name: "connect.sid",
                         value: sessionToken.value,
                       );
@@ -742,15 +740,15 @@ class TaxiView extends HookWidget {
                     }
                   }
                 },
-                onLoadResourceCustomScheme: (controller, url) async {
-                  if (!['intent'].contains(url.scheme)) {
+                onLoadResourceWithCustomScheme: (controller, url) async {
+                  if (!['intent'].contains(url.url.scheme)) {
                     await controller.stopLoading();
                     if (await canLaunchUrlString(url.toString())) {
                       await launchUrlString(url.toString(),
                           mode: LaunchMode.externalApplication);
                       return;
                     }
-                    switch (url.scheme) {
+                    switch (url.url.scheme) {
                       case 'supertoss':
                         OpenStore.instance.open(
                             androidAppBundleId: "viva.republica.toss",
@@ -787,7 +785,7 @@ class TaxiView extends HookWidget {
                     return null;
                   }
                   if (Platform.isAndroid) {
-                    if (url.scheme == 'intent') {
+                    if (url.url.scheme == 'intent') {
                       try {
                         await controller.stopLoading();
                         const MethodChannel channel =
@@ -796,7 +794,7 @@ class TaxiView extends HookWidget {
                             "launchURI", url.toString());
                         if (result != null) {
                           await _controller.value?.loadUrl(
-                              urlRequest: URLRequest(url: Uri.parse(result)));
+                              urlRequest: URLRequest(url: WebUri(result)));
                         }
                       } catch (e) {
                         // TODO
@@ -810,13 +808,14 @@ class TaxiView extends HookWidget {
                   }
                   return null;
                 },
-                onLoadError: (controller, url, code, message) {
+                onReceivedError: (controller, req, err) {
                   // 될 때까지 리로드
                   if (!isLoaded.value && LoadCount.value < 10) {
                     LoadCount.value++;
                   } else if (isServerError.value == false &&
-                      code != 102 &&
-                      code != -999) {
+                      err.type != WebResourceErrorType.CANCELLED &&
+                      err.type !=
+                          WebResourceErrorType.USER_CANCELLED_AUTHENTICATION) {
                     Fluttertoast.showToast(
                         msg: "서버와의 연결에 실패했습니다.",
                         toastLength: Toast.LENGTH_SHORT,
@@ -911,7 +910,7 @@ class TaxiView extends HookWidget {
     ]));
   }
 
-  Future<bool> _goBack(
+  Future<void> _goBack(
       BuildContext context,
       ValueNotifier<bool> backCount,
       ValueNotifier<bool> isAuthLogin,
@@ -919,18 +918,15 @@ class TaxiView extends HookWidget {
     Uri? current_uri = await _controller!.getUrl();
     final address = RemoteConfigController().frontUrl;
     if (Uri.parse(address).origin != current_uri?.origin) {
-      await _controller.loadUrl(
-          urlRequest: URLRequest(url: Uri.parse(address)));
+      await _controller.loadUrl(urlRequest: URLRequest(url: WebUri(address)));
       backCount.value = false;
-      return false;
     } else if (await _controller.canGoBack() &&
         (current_uri?.path != '/') &&
         (current_uri?.path != '/home')) {
       _controller.goBack();
       backCount.value = false;
-      return false;
     } else if (backCount.value) {
-      return true;
+      Navigator.pop(context);
     } else {
       backCount.value = true;
       Fluttertoast.showToast(
@@ -939,7 +935,6 @@ class TaxiView extends HookWidget {
         textColor: toastTextColor,
         toastLength: Toast.LENGTH_SHORT,
       );
-      return false;
     }
   }
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index 98ceec1..5b1f7c1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -34,16 +34,15 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
   flutter_hooks: ^0.18.6
-  flutter_inappwebview: ^5.7.2
+  flutter_inappwebview: ^6.1.5
   flutter_secure_storage: ^8.0.0
   dio: ^5.0.0
   firebase_messaging: ^14.6.1
-  flutter_local_notifications: ^14.0.0
+  flutter_local_notifications: ^18.0.0
   firebase_core: ^2.13.0
-  flutter_web_auth: ^0.5.0
   dio_cookie_manager: ^2.1.4
   google_fonts: ^4.0.0
-  fluttertoast: ^8.2.1
+  fluttertoast: ^8.2.8
   cookie_jar: ^3.0.1
   flutter_dotenv: ^5.0.2
   package_info: ^2.0.2