diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ce408284..1c9482ca 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Publish Linux
         if: matrix.os == 'ubuntu-latest'
         shell: bash
-        run: ./gradlew publishLinuxPublicationToMavenLocal
+        run: ./gradlew publishLinuxX64PublicationToMavenLocal
       - name: Publish MacOS
         if: matrix.os == 'macOS-latest'
         shell: bash
diff --git a/.github/workflows/snapshot.yml b/.github/workflows/snapshot.yml
index ae1df0c8..c3e08646 100644
--- a/.github/workflows/snapshot.yml
+++ b/.github/workflows/snapshot.yml
@@ -46,7 +46,7 @@ jobs:
       - name: Publish Linux to Maven Local
         if: matrix.os == 'ubuntu-latest'
         shell: bash
-        run: ./gradlew publishLinuxPublicationToMavenLocal
+        run: ./gradlew publishLinuxX64PublicationToMavenLocal
       - name: Publish MacOS to Maven Local
         if: matrix.os == 'macOS-latest'
         shell: bash
diff --git a/build.gradle.kts b/build.gradle.kts
index 9eba497c..44b7ac30 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,8 +4,8 @@ import org.jetbrains.kotlin.gradle.targets.native.tasks.KotlinNativeHostTest
 import org.jetbrains.kotlin.gradle.targets.native.tasks.KotlinNativeSimulatorTest
 
 plugins {
-    kotlin("multiplatform") version "1.8.21"
-    id("org.jetbrains.dokka") version "1.8.10"
+    kotlin("multiplatform") version "1.9.21"
+    id("org.jetbrains.dokka") version "1.9.10"
     `maven-publish`
 }
 
@@ -30,14 +30,22 @@ kotlin {
         }
     }
 
-    linuxX64("linux")
+    linuxX64()
 
-    ios {
+    iosX64 {
+        compilations["main"].cinterops.create("CoreCrypto")
+    }
+
+    iosArm64 {
+        compilations["main"].cinterops.create("CoreCrypto")
+    }
+
+    iosSimulatorArm64 {
         compilations["main"].cinterops.create("CoreCrypto")
     }
 
     sourceSets {
-        val secp256k1KmpVersion = "0.11.0"
+        val secp256k1KmpVersion = "0.13.0-SNAPSHOT"
 
         val commonMain by getting {
             dependencies {
@@ -76,12 +84,18 @@ kotlin {
         compilations.all {
             kotlinOptions {
                 allWarningsAsErrors = true
+                // We use expect/actual for classes (see Chacha20Poly1305CipherFunctions). This feature is in beta and raises a warning.
+                // See https://youtrack.jetbrains.com/issue/KT-61573
+                kotlinOptions.freeCompilerArgs += "-Xexpect-actual-classes"
             }
         }
     }
 }
 
 configurations.forEach {
+    // do not cache changing (i.e. SNAPSHOT) dependencies
+    it.resolutionStrategy.cacheChangingModulesFor(0, TimeUnit.SECONDS)
+
     if (it.name.contains("testCompileClasspath")) {
         it.attributes.attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage::class.java, "java-runtime"))
     }
@@ -94,7 +108,7 @@ plugins.withId("org.jetbrains.kotlin.multiplatform") {
         val currentOs = org.gradle.internal.os.OperatingSystem.current()
         val targets = when {
             currentOs.isLinux -> listOf()
-            else -> listOf("linux")
+            else -> listOf("linuxX64")
         }.mapNotNull { kotlin.targets.findByName(it) as? org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget }
 
         configure(targets) {
diff --git a/src/commonMain/kotlin/fr/acinq/bitcoin/crypto/Pbkdf2.kt b/src/commonMain/kotlin/fr/acinq/bitcoin/crypto/Pbkdf2.kt
index 79500e8a..7453128f 100644
--- a/src/commonMain/kotlin/fr/acinq/bitcoin/crypto/Pbkdf2.kt
+++ b/src/commonMain/kotlin/fr/acinq/bitcoin/crypto/Pbkdf2.kt
@@ -21,7 +21,6 @@ import kotlin.jvm.JvmStatic
 
 public expect object Pbkdf2 {
 
-    @JvmStatic
     public fun withHmacSha512(password: ByteArray, salt: ByteArray, count: Int, dkLen: Int): ByteArray
 
 }