diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7986d8a4a..63f106f1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,9 @@ Release 5.2.0:
  - New artefact `vck-openid-ktor` implements a ktor client for OpenID for Verifiable Credential Issuance and OpenID for Verifiable Presentations
  - Remove `scopePresentationDefinitionRetriever` from `OidcSiopWallet` to keep implementation simple
  - In subclasses of `SubjectCredentialStore.StoreEntry` replace `scheme: ConstantIndex.CredentialScheme` with `schemaUri: String` to actually make it serializable
+ - Dependency Updates:
+   - Signum 3.11.0
+   - Kotlin 2.1.0  through Conventions 2.1.0+20241204
 
 Release 5.1.0:
  - Drop ARIES protocol implementation, and the `vck-aries` artifact
diff --git a/README.md b/README.md
index 46802ce78..d27cb188d 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 [![A-SIT Plus Official](https://img.shields.io/badge/A--SIT_Plus-official-005b79?logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%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%2BPC9zdmc%2B&logoColor=white&labelColor=white)](https://a-sit-plus.github.io)
 [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-brightgreen.svg?style=flat)](http://www.apache.org/licenses/LICENSE-2.0)
 [![Kotlin](https://img.shields.io/badge/kotlin-multiplatform--mobile-orange.svg?logo=kotlin)](http://kotlinlang.org)
-[![Kotlin](https://img.shields.io/badge/kotlin-2.0.20-blue.svg?logo=kotlin)](http://kotlinlang.org)
+[![Kotlin](https://img.shields.io/badge/kotlin-2.1.0-blue.svg?logo=kotlin)](http://kotlinlang.org)
 [![Java](https://img.shields.io/badge/java-17-blue.svg?logo=OPENJDK)](https://www.oracle.com/java/technologies/downloads/#java17)
 [![Maven Central](https://img.shields.io/maven-central/v/at.asitplus.wallet/vck)](https://mvnrepository.com/artifact/at.asitplus.wallet/vck)
 
diff --git a/conventions-vclib/gradle-conventions-plugin b/conventions-vclib/gradle-conventions-plugin
index 8c9475ecb..46073ffd7 160000
--- a/conventions-vclib/gradle-conventions-plugin
+++ b/conventions-vclib/gradle-conventions-plugin
@@ -1 +1 @@
-Subproject commit 8c9475ecb8c62855d98685315bab63b0e75883d3
+Subproject commit 46073ffd7734d02cac7f49ff475526821f010bdf
diff --git a/conventions-vclib/src/main/resources/vcLibVersions.properties b/conventions-vclib/src/main/resources/vcLibVersions.properties
index 451c7f46e..ccb2c949a 100644
--- a/conventions-vclib/src/main/resources/vcLibVersions.properties
+++ b/conventions-vclib/src/main/resources/vcLibVersions.properties
@@ -1,5 +1,5 @@
-signum=3.11.0-SNAPSHOT
-supreme=0.5.0
+signum=3.11.0
+supreme=0.6.0
 uuid=0.8.1
 jsonpath=2.4.0
 jvm.json=20230618
diff --git a/signum b/signum
index 9adf4a919..1f2acdc84 160000
--- a/signum
+++ b/signum
@@ -1 +1 @@
-Subproject commit 9adf4a919779b0d0689e5ae12c7619c73560d4bd
+Subproject commit 1f2acdc843468cfd3364dfff9d8cd2675ddc76eb
diff --git a/vck/src/commonTest/kotlin/at/asitplus/wallet/lib/TestUtils.kt b/vck/src/commonTest/kotlin/at/asitplus/wallet/lib/TestUtils.kt
new file mode 100644
index 000000000..efa327b14
--- /dev/null
+++ b/vck/src/commonTest/kotlin/at/asitplus/wallet/lib/TestUtils.kt
@@ -0,0 +1,10 @@
+package at.asitplus.wallet.lib
+
+/** Drops bytes at the start, or adds zero bytes at the start, until the [size] is reached */
+fun ByteArray.ensureSize(size: Int): ByteArray = (this.size - size).let { toDrop ->
+    when {
+        toDrop > 0 -> this.copyOfRange(toDrop, this.size)
+        toDrop < 0 -> ByteArray(-toDrop) + this
+        else -> this
+    }
+}
\ No newline at end of file
diff --git a/vck/src/jvmTest/kotlin/at/asitplus/wallet/lib/jws/JsonWebKeyJvmTest.kt b/vck/src/jvmTest/kotlin/at/asitplus/wallet/lib/jws/JsonWebKeyJvmTest.kt
index 9c1803e1f..887934843 100644
--- a/vck/src/jvmTest/kotlin/at/asitplus/wallet/lib/jws/JsonWebKeyJvmTest.kt
+++ b/vck/src/jvmTest/kotlin/at/asitplus/wallet/lib/jws/JsonWebKeyJvmTest.kt
@@ -1,8 +1,8 @@
 package at.asitplus.wallet.lib.jws
 
 import at.asitplus.signum.indispensable.ECCurve
-import at.asitplus.signum.indispensable.misc.ensureSize
 import at.asitplus.signum.indispensable.josef.JsonWebKey
+import at.asitplus.wallet.lib.ensureSize
 import io.kotest.core.spec.style.FreeSpec
 import io.kotest.matchers.nulls.shouldNotBeNull
 import io.kotest.matchers.shouldBe
@@ -24,8 +24,8 @@ class JsonWebKeyJvmTest : FreeSpec({
     }
 
     "JWK can be created from Coordinates" - {
-        val xFromBc = (keyPair.public as ECPublicKey).w.affineX.toByteArray().ensureSize(ecCurve.coordinateLengthBytes)
-        val yFromBc = (keyPair.public as ECPublicKey).w.affineY.toByteArray().ensureSize(ecCurve.coordinateLengthBytes)
+        val xFromBc = (keyPair.public as ECPublicKey).w.affineX.toByteArray().ensureSize(ecCurve.coordinateLengthBytes.toInt())
+        val yFromBc = (keyPair.public as ECPublicKey).w.affineY.toByteArray().ensureSize(ecCurve.coordinateLengthBytes.toInt())
         val jsonWebKey = JsonWebKey.fromCoordinates(ecCurve, xFromBc, yFromBc).getOrThrow()
 
         jsonWebKey.x shouldBe xFromBc
@@ -42,8 +42,8 @@ class JsonWebKeyJvmTest : FreeSpec({
     }
 
     "JWK can be created from ANSI X962" - {
-        val xFromBc = (keyPair.public as ECPublicKey).w.affineX.toByteArray().ensureSize(ecCurve.coordinateLengthBytes)
-        val yFromBc = (keyPair.public as ECPublicKey).w.affineY.toByteArray().ensureSize(ecCurve.coordinateLengthBytes)
+        val xFromBc = (keyPair.public as ECPublicKey).w.affineX.toByteArray().ensureSize(ecCurve.coordinateLengthBytes.toInt())
+        val yFromBc = (keyPair.public as ECPublicKey).w.affineY.toByteArray().ensureSize(ecCurve.coordinateLengthBytes.toInt())
         val ansiX962 = byteArrayOf(0x04) + xFromBc + yFromBc
         val jsonWebKey = JsonWebKey.fromCoordinates(ecCurve, xFromBc, yFromBc).getOrThrow()