diff --git a/sdk/src/main/java/com/oursky/authgear/AuthgearCore.kt b/sdk/src/main/java/com/oursky/authgear/AuthgearCore.kt
index ab7058ad..d5d4f35b 100644
--- a/sdk/src/main/java/com/oursky/authgear/AuthgearCore.kt
+++ b/sdk/src/main/java/com/oursky/authgear/AuthgearCore.kt
@@ -483,7 +483,11 @@ internal class AuthgearCore(
                     }
                 }
             }
-            application.registerReceiver(br, intentFilter)
+            if (Build.VERSION.SDK_INT >= 33) {
+                application.registerReceiver(br, intentFilter, Context.RECEIVER_NOT_EXPORTED)
+            } else {
+                application.registerReceiver(br, intentFilter)
+            }
             application.startActivity(
                 WebViewActivity.createIntent(application, action, authorizeUrl)
             )
diff --git a/sdk/src/main/java/com/oursky/authgear/CustomTabsUIImplementation.kt b/sdk/src/main/java/com/oursky/authgear/CustomTabsUIImplementation.kt
index 14ce10f2..307f2c64 100644
--- a/sdk/src/main/java/com/oursky/authgear/CustomTabsUIImplementation.kt
+++ b/sdk/src/main/java/com/oursky/authgear/CustomTabsUIImplementation.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.net.Uri
+import android.os.Build
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 import kotlin.coroutines.suspendCoroutine
@@ -54,7 +55,11 @@ class CustomTabsUIImplementation : UIImplementation {
                         }
                     }
                 }
-            context.registerReceiver(br, intentFilter)
+            if (Build.VERSION.SDK_INT >= 33) {
+                context.registerReceiver(br, intentFilter, Context.RECEIVER_NOT_EXPORTED)
+            } else {
+                context.registerReceiver(br, intentFilter)
+            }
             context.startActivity(
                 OAuthActivity.createAuthorizationIntent(
                     context,
diff --git a/sdk/src/main/java/com/oursky/authgear/OAuthActivity.kt b/sdk/src/main/java/com/oursky/authgear/OAuthActivity.kt
index 976f3b7c..0d724f9a 100644
--- a/sdk/src/main/java/com/oursky/authgear/OAuthActivity.kt
+++ b/sdk/src/main/java/com/oursky/authgear/OAuthActivity.kt
@@ -48,6 +48,7 @@ internal class OAuthActivity : AppCompatActivity() {
 
         intent.getStringExtra(KEY_BROADCAST_ACTION)?.let { broadcastAction ->
             val broadcastIntent = Intent(broadcastAction)
+            broadcastIntent.setPackage(this.applicationContext.packageName)
             broadcastIntent.putExtra(AuthgearCore.KEY_OAUTH_BOARDCAST_TYPE, OAuthBroadcastType.REDIRECT_URL.name)
             this.intent.data?.toString()?.let {
                 broadcastIntent.putExtra(AuthgearCore.KEY_REDIRECT_URL, it)
diff --git a/sdk/src/main/java/com/oursky/authgear/OAuthWebViewBaseActivity.kt b/sdk/src/main/java/com/oursky/authgear/OAuthWebViewBaseActivity.kt
index 17a0107b..36c7e5e1 100644
--- a/sdk/src/main/java/com/oursky/authgear/OAuthWebViewBaseActivity.kt
+++ b/sdk/src/main/java/com/oursky/authgear/OAuthWebViewBaseActivity.kt
@@ -154,6 +154,7 @@ internal open class OAuthWebViewBaseActivity : AppCompatActivity() {
     private fun sendRedirectURLBroadcast() {
         intent.getStringExtra(KEY_BROADCAST_ACTION)?.let { broadcastAction ->
             val broadcastIntent = Intent(broadcastAction)
+            broadcastIntent.setPackage(this.applicationContext.packageName)
             broadcastIntent.putExtra(AuthgearCore.KEY_OAUTH_BOARDCAST_TYPE, OAuthBroadcastType.REDIRECT_URL.name)
             mResult?.data?.toString()?.let {
                 broadcastIntent.putExtra(AuthgearCore.KEY_REDIRECT_URL, it)
diff --git a/sdk/src/main/java/com/oursky/authgear/WebKitWebViewActivity.kt b/sdk/src/main/java/com/oursky/authgear/WebKitWebViewActivity.kt
index a6622d8b..32e9f3d4 100644
--- a/sdk/src/main/java/com/oursky/authgear/WebKitWebViewActivity.kt
+++ b/sdk/src/main/java/com/oursky/authgear/WebKitWebViewActivity.kt
@@ -309,6 +309,7 @@ class WebKitWebViewActivity: AppCompatActivity() {
 
         this.intent.getStringExtra(KEY_BROADCAST_ACTION)?.let { broadcastAction ->
             val broadcastIntent = Intent(broadcastAction)
+            broadcastIntent.setPackage(this.applicationContext.packageName)
             broadcastIntent.putExtra(AuthgearCore.KEY_OAUTH_BOARDCAST_TYPE, OAuthBroadcastType.REDIRECT_URL.name)
             if (this.result != null) {
                 broadcastIntent.putExtra(AuthgearCore.KEY_REDIRECT_URL, this.result.toString())
diff --git a/sdk/src/main/java/com/oursky/authgear/WebKitWebViewUIImplementation.kt b/sdk/src/main/java/com/oursky/authgear/WebKitWebViewUIImplementation.kt
index d3813c4a..ab09e964 100644
--- a/sdk/src/main/java/com/oursky/authgear/WebKitWebViewUIImplementation.kt
+++ b/sdk/src/main/java/com/oursky/authgear/WebKitWebViewUIImplementation.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.net.Uri
+import android.os.Build
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 import kotlin.coroutines.suspendCoroutine
@@ -55,7 +56,11 @@ class WebKitWebViewUIImplementation(val actionBarBackgroundColor: Int? = null, v
                         }
                     }
                 }
-            context.registerReceiver(br, intentFilter)
+            if (Build.VERSION.SDK_INT >= 33) {
+                context.registerReceiver(br, intentFilter, Context.RECEIVER_NOT_EXPORTED)
+            } else {
+                context.registerReceiver(br, intentFilter)
+            }
             val webViewOptions = WebKitWebViewActivity.Options(options.url, options.redirectURI)
             webViewOptions.actionBarBackgroundColor = this@WebKitWebViewUIImplementation.actionBarBackgroundColor
             webViewOptions.actionBarButtonTintColor = this@WebKitWebViewUIImplementation.actionBarButtonTintColor
diff --git a/sdk/src/main/java/com/oursky/authgear/WebViewActivity.kt b/sdk/src/main/java/com/oursky/authgear/WebViewActivity.kt
index 081318d1..58319106 100644
--- a/sdk/src/main/java/com/oursky/authgear/WebViewActivity.kt
+++ b/sdk/src/main/java/com/oursky/authgear/WebViewActivity.kt
@@ -115,6 +115,7 @@ internal class WebViewActivity : AppCompatActivity() {
     private fun sendEndBroadcast() {
         this.intent.getStringExtra(KEY_BROADCAST_ACTION)?.let { broadcastAction ->
             val broadcastIntent = Intent(broadcastAction)
+            broadcastIntent.setPackage(this.applicationContext.packageName)
             broadcastIntent.putExtra(KEY_BROADCAST_TYPE, BroadcastType.END.name)
             this.sendBroadcast(broadcastIntent)
         }
diff --git a/sdk/src/main/java/com/oursky/authgear/app2app/App2App.kt b/sdk/src/main/java/com/oursky/authgear/app2app/App2App.kt
index 5122d422..68ef8d33 100644
--- a/sdk/src/main/java/com/oursky/authgear/app2app/App2App.kt
+++ b/sdk/src/main/java/com/oursky/authgear/app2app/App2App.kt
@@ -117,7 +117,11 @@ internal class App2App(
                     k.resume(Uri.parse(resultUri))
                 }
             }
-            application.registerReceiver(br, intentFilter)
+            if (Build.VERSION.SDK_INT >= 33) {
+                application.registerReceiver(br, intentFilter, Context.RECEIVER_NOT_EXPORTED)
+            } else {
+                application.registerReceiver(br, intentFilter)
+            }
             application.startActivity(intent)
         }
     }