diff --git a/packages/expo-google-signin/android/build.gradle b/packages/expo-google-signin/android/build.gradle
index 81ad78c0c7a..d1878845717 100644
--- a/packages/expo-google-signin/android/build.gradle
+++ b/packages/expo-google-signin/android/build.gradle
@@ -1,5 +1,12 @@
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
+// AGP 9 ships built-in Kotlin support and registers the `kotlin` extension
+// itself. Applying the Kotlin plugin on top of it fails configuration with
+// "Cannot add extension with name 'kotlin'". Only apply it when nothing has
+// registered that extension yet.
+if (project.extensions.findByName('kotlin') == null) {
+  apply plugin: 'kotlin-android'
+}
+
 apply plugin: 'maven-publish'
 
 group = 'expo.modules.clerk.googlesignin'
diff --git a/packages/expo-passkeys/android/build.gradle b/packages/expo-passkeys/android/build.gradle
index 079ee040f20..0930d90a3ac 100644
--- a/packages/expo-passkeys/android/build.gradle
+++ b/packages/expo-passkeys/android/build.gradle
@@ -1,5 +1,12 @@
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
+// AGP 9 ships built-in Kotlin support and registers the `kotlin` extension
+// itself. Applying the Kotlin plugin on top of it fails configuration with
+// "Cannot add extension with name 'kotlin'". Only apply it when nothing has
+// registered that extension yet.
+if (project.extensions.findByName('kotlin') == null) {
+    apply plugin: 'kotlin-android'
+}
+
 apply plugin: 'maven-publish'
 
 group = 'expo.modules.clerkexpopasskeys'