diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9062dae..d654544 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -77,4 +77,8 @@ attestation on Android, please re-read the readme!
 - Refactor exceptions
 
 ### 1.4.0
-- Discriminate between temporal certificate validation errors and trust-related ones
\ No newline at end of file
+- Discriminate between temporal certificate validation errors and trust-related ones
+
+#### 1.4.1
+- make all config classes `data` classes
+- update to android attestation 1.2.1
\ No newline at end of file
diff --git a/android-attestation-root b/android-attestation-root
index 3564527..b970dcc 160000
--- a/android-attestation-root
+++ b/android-attestation-root
@@ -1 +1 @@
-Subproject commit 3564527afb1e47492185bab1ce0c3c21fab8e4fc
+Subproject commit b970dcca693fa02eb12c9ed4bfd9fb2c07484153
diff --git a/attestation-service/build.gradle.kts b/attestation-service/build.gradle.kts
index 2f5ac5e..c9c0b18 100644
--- a/attestation-service/build.gradle.kts
+++ b/attestation-service/build.gradle.kts
@@ -11,7 +11,7 @@ plugins {
 }
 
 group = "at.asitplus"
-version = "1.4.0"
+version = "1.4.1"
 
 sourceSets.test {
     kotlin {
@@ -20,7 +20,7 @@ sourceSets.test {
 }
 
 dependencies {
-    api("at.asitplus:android-attestation:1.2.0")
+    api("at.asitplus:android-attestation:1.2.1")
     api(datetime())
     implementation("ch.veehait.devicecheck:devicecheck-appattest:0.9.6")
     implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.14.2")
diff --git a/attestation-service/src/main/kotlin/AttestationService.kt b/attestation-service/src/main/kotlin/AttestationService.kt
index 09518d7..73a5000 100644
--- a/attestation-service/src/main/kotlin/AttestationService.kt
+++ b/attestation-service/src/main/kotlin/AttestationService.kt
@@ -64,7 +64,7 @@ data class IOSAttestationConfiguration @JvmOverloads constructor(
     /**
      * Specifies a to-be attested app
      */
-    class AppData @JvmOverloads constructor(
+    data class AppData @JvmOverloads constructor(
         /**
          * Nomen est omen
          */