diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a0ec88..94c6aee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Release Notes
 
+## 11.2.1 - September 10, 2025
+
+### Added
+* Bump Android SDK to v11.1.1 (https://github.com/smileidentity/android/releases/tag/v11.1.1)
+
 ## 11.2.0 - August 25, 2025
 
 ### Added
diff --git a/android/build.gradle.kts b/android/build.gradle.kts
index 8a24637..e7b4af9 100644
--- a/android/build.gradle.kts
+++ b/android/build.gradle.kts
@@ -92,7 +92,10 @@ android {
 }
 
 dependencies {
-    implementation("com.smileidentity:android-sdk:11.1.0")
+    implementation("com.smileidentity:android-sdk:11.1.1") {
+        exclude(group = "SmileID", module = "attestation")
+    }
+    implementation("com.smileidentity:android-attestation:11.1.1")
     implementation("androidx.core:core-ktx:1.16.0")
     implementation(platform("androidx.compose:compose-bom:2025.07.00"))
     implementation("androidx.compose.ui:ui")
diff --git a/android/src/main/kotlin/com/smileidentity/flutter/SmileIDPlugin.kt b/android/src/main/kotlin/com/smileidentity/flutter/SmileIDPlugin.kt
index d80ab7e..7339baa 100644
--- a/android/src/main/kotlin/com/smileidentity/flutter/SmileIDPlugin.kt
+++ b/android/src/main/kotlin/com/smileidentity/flutter/SmileIDPlugin.kt
@@ -201,7 +201,12 @@ class SmileIDPlugin :
         request: FlutterPrepUploadRequest,
         callback: (Result<FlutterPrepUploadResponse>) -> Unit,
     ) = launch(
-        work = { SmileID.api.prepUpload(request.toRequest()).toResponse() },
+        work = {
+            SmileID.api.prepUpload(
+                headers = mapOf(),
+                request = request.toRequest(),
+            ).toResponse()
+        },
         callback = callback,
     )
 
diff --git a/pubspec.yaml b/pubspec.yaml
index f0d8d29..38298b4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: smile_id
 description: The Official Smile ID Flutter SDK
-version: 11.2.0
+version: 11.2.1
 homepage: "https://usesmileid.com"
 
 environment: