diff --git a/SampleApplications/NativeApp/build.gradle.kts b/SampleApplications/NativeApp/build.gradle.kts
index a2a59a7f..582496df 100644
--- a/SampleApplications/NativeApp/build.gradle.kts
+++ b/SampleApplications/NativeApp/build.gradle.kts
@@ -12,12 +12,16 @@ kotlin {
     macosArm64()
 
 
+    val kotlinxSerializationVersion: String by project
+
     sourceSets {
 
         val nativeMain by getting {
             dependencies {
                 implementation(project(":fints4k"))
 
+                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlinxSerializationVersion")
+
                 implementation("com.github.ajalt.clikt:clikt:3.5.4")
 
                 // only needed for writing files to output
diff --git a/build.gradle b/build.gradle
index 8fc7d060..bf391dba 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,22 +3,13 @@ ext {
     appVersionName = '1.0.0-Alpha-11-SNAPSHOT'
 
 
-    /*      MPP / basic dependencies        */
-
-
-    javaUtilsVersion = '1.0.18'
-
-
     /*      Test        */
 
-    junit5Version = '5.5.2'
-
     assertJVersion = '3.12.2'
 
     mockitoVersion = '2.22.0'
     mockitoKotlinVersion = '1.6.0'
 
-    slf4jVersion = '1.7.26'
     logbackVersion = '1.2.3'
 }