diff --git a/waltid-crypto/build.gradle.kts b/waltid-crypto/build.gradle.kts
index a6374a726..33be04543 100644
--- a/waltid-crypto/build.gradle.kts
+++ b/waltid-crypto/build.gradle.kts
@@ -39,12 +39,12 @@ kotlin {
                 implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0")
 
                 // Ktor client
-                implementation("io.ktor:ktor-client-core:2.3.5")
-                implementation("io.ktor:ktor-client-serialization:2.3.5")
-                implementation("io.ktor:ktor-client-content-negotiation:2.3.5")
-                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.5")
-                implementation("io.ktor:ktor-client-json:2.3.5")
-                implementation("io.ktor:ktor-client-logging:2.3.5")
+                implementation("io.ktor:ktor-client-core:2.3.6")
+                implementation("io.ktor:ktor-client-serialization:2.3.6")
+                implementation("io.ktor:ktor-client-content-negotiation:2.3.6")
+                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.6")
+                implementation("io.ktor:ktor-client-json:2.3.6")
+                implementation("io.ktor:ktor-client-logging:2.3.6")
 
                 // Coroutines
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
@@ -69,7 +69,7 @@ kotlin {
                 implementation("org.bouncycastle:bcpkix-jdk18on:1.76") // PEM import
 
                 // Ktor client
-                implementation("io.ktor:ktor-client-cio:2.3.5")
+                implementation("io.ktor:ktor-client-cio:2.3.6")
 
                 // Logging
                 implementation("org.slf4j:slf4j-simple:2.0.9")
diff --git a/waltid-did/build.gradle.kts b/waltid-did/build.gradle.kts
index 821e7102e..08acc7767 100644
--- a/waltid-did/build.gradle.kts
+++ b/waltid-did/build.gradle.kts
@@ -41,12 +41,12 @@ kotlin {
                 implementation("io.github.optimumcode:json-schema-validator:0.0.2")
 
                 // Ktor client
-                implementation("io.ktor:ktor-client-core:2.3.5")
-                implementation("io.ktor:ktor-client-serialization:2.3.5")
-                implementation("io.ktor:ktor-client-content-negotiation:2.3.5")
-                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.5")
-                implementation("io.ktor:ktor-client-json:2.3.5")
-                implementation("io.ktor:ktor-client-logging:2.3.5")
+                implementation("io.ktor:ktor-client-core:2.3.6")
+                implementation("io.ktor:ktor-client-serialization:2.3.6")
+                implementation("io.ktor:ktor-client-content-negotiation:2.3.6")
+                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.6")
+                implementation("io.ktor:ktor-client-json:2.3.6")
+                implementation("io.ktor:ktor-client-logging:2.3.6")
 
                 // Coroutines
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
@@ -71,7 +71,7 @@ kotlin {
         val jvmMain by getting {
             dependencies {
                 // Ktor client
-                implementation("io.ktor:ktor-client-cio:2.3.5")
+                implementation("io.ktor:ktor-client-cio:2.3.6")
 
                 // Logging
                 implementation("org.slf4j:slf4j-simple:2.0.9")
@@ -85,9 +85,9 @@ kotlin {
                 implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0")
                 implementation(kotlin("test"))
                 implementation("org.junit.jupiter:junit-jupiter-params:5.9.0")
-                implementation("io.ktor:ktor-server-test-host:2.3.5")
-                implementation("io.ktor:ktor-server-content-negotiation:2.3.5")
-                implementation("io.ktor:ktor-server-netty:2.3.5")
+                implementation("io.ktor:ktor-server-test-host:2.3.6")
+                implementation("io.ktor:ktor-server-content-negotiation:2.3.6")
+                implementation("io.ktor:ktor-server-netty:2.3.6")
             }
         }
         publishing {
diff --git a/waltid-issuer/build.gradle.kts b/waltid-issuer/build.gradle.kts
index 74ed8b964..ba0872b72 100644
--- a/waltid-issuer/build.gradle.kts
+++ b/waltid-issuer/build.gradle.kts
@@ -1,23 +1,20 @@
-/*import com.github.jk1.license.filter.DependencyFilter
-import com.github.jk1.license.filter.LicenseBundleNormalizer
-import com.github.jk1.license.render.InventoryHtmlReportRenderer
-import com.github.jk1.license.render.ReportRenderer*/
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 object Versions {
-    const val KOTLIN_VERSION = "1.9.10" // also change 2 plugins
+    const val KOTLIN_VERSION = "1.9.20" // also change 2 plugins
     const val KTOR_VERSION = "2.3.6" // also change 1 plugin
     const val COROUTINES_VERSION = "1.7.3"
     const val EXPOSED_VERSION = "0.43.0"
-    const val HOPLITE_VERSION = "2.8.0.RC2"
+    const val HOPLITE_VERSION = "2.8.0.RC3"
 }
 
 plugins {
     kotlin("jvm") // Versions.KOTLIN_VERSION
     id("org.jetbrains.kotlin.plugin.serialization")  // Versions.KOTLIN_VERSION
 
-    id("io.ktor.plugin") version "2.3.5" // Versions.KTOR_VERSION
-    id("org.owasp.dependencycheck") version "8.4.2"
+    //id("io.ktor.plugin") version "2.3.6" // Versions.KTOR_VERSION
+    id("io.ktor.plugin") version "2.3.6" // Versions.KTOR_VERSION
+    id("org.owasp.dependencycheck") version "8.4.3"
     id("com.github.jk1.dependency-license-report") version "2.5"
     application
     `maven-publish`
@@ -63,7 +60,7 @@ dependencies {
     implementation("io.ktor:ktor-server-cio-jvm:${Versions.KTOR_VERSION}")
 
     // Ktor server external libs
-    implementation("io.github.smiley4:ktor-swagger-ui:2.6.0")
+    implementation("io.github.smiley4:ktor-swagger-ui:2.7.1")
 
     // Ktor client
     implementation("io.ktor:ktor-client-core-jvm:${Versions.KTOR_VERSION}")
@@ -122,7 +119,7 @@ dependencies {
     api(project(":waltid-sdjwt"))
 
     // TODO: REMOVE:
-    implementation("com.nimbusds:nimbus-jose-jwt:9.37")
+    implementation("com.nimbusds:nimbus-jose-jwt:9.37.1")
 
     //api(project(":waltid-mdocs"))
     //implementation("id.walt:waltid-ssikit2:1.0.8a-SNAPSHOT")
diff --git a/waltid-issuer/src/main/kotlin/id/walt/issuer/base/web/plugins/StatusPages.kt b/waltid-issuer/src/main/kotlin/id/walt/issuer/base/web/plugins/StatusPages.kt
index 69583ca5b..2c5124202 100644
--- a/waltid-issuer/src/main/kotlin/id/walt/issuer/base/web/plugins/StatusPages.kt
+++ b/waltid-issuer/src/main/kotlin/id/walt/issuer/base/web/plugins/StatusPages.kt
@@ -19,6 +19,9 @@ private fun statusCodeForException(cause: Throwable) = when (cause) {
 
 fun Application.configureStatusPages() {
     install(StatusPages) {
+        exception<NotFoundException> { call, ex ->
+            call.respond(HttpStatusCode.NotFound, ex.message ?: "Not found")
+        }
         exception<UnauthorizedException> { call, cause ->
             call.respond(HttpStatusCode.Unauthorized, cause.message ?: "")
         }
diff --git a/waltid-openid4vc/build.gradle.kts b/waltid-openid4vc/build.gradle.kts
index 468ee28ec..c3af71840 100644
--- a/waltid-openid4vc/build.gradle.kts
+++ b/waltid-openid4vc/build.gradle.kts
@@ -63,7 +63,7 @@ kotlin {
 //        isMingwX64 -> mingwX64("native")
 //        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
 //    }
-    val ktor_version = "2.3.5"
+    val ktor_version = "2.3.6"
 
 
     sourceSets {
diff --git a/waltid-reporting/build.gradle.kts b/waltid-reporting/build.gradle.kts
index d800f7d5a..592abe992 100644
--- a/waltid-reporting/build.gradle.kts
+++ b/waltid-reporting/build.gradle.kts
@@ -40,12 +40,12 @@ kotlin {
                 implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0")
 
                 // Ktor client
-                implementation("io.ktor:ktor-client-core:2.3.5")
-                implementation("io.ktor:ktor-client-serialization:2.3.5")
-                implementation("io.ktor:ktor-client-content-negotiation:2.3.5")
-                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.5")
-                implementation("io.ktor:ktor-client-json:2.3.5")
-                implementation("io.ktor:ktor-client-logging:2.3.5")
+                implementation("io.ktor:ktor-client-core:2.3.6")
+                implementation("io.ktor:ktor-client-serialization:2.3.6")
+                implementation("io.ktor:ktor-client-content-negotiation:2.3.6")
+                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.6")
+                implementation("io.ktor:ktor-client-json:2.3.6")
+                implementation("io.ktor:ktor-client-logging:2.3.6")
 
                 // Scheduler
                 implementation("it.justwrote:kjob-core:0.2.0")
@@ -72,7 +72,7 @@ kotlin {
         val jvmMain by getting {
             dependencies {
                 // Ktor client
-                implementation("io.ktor:ktor-client-cio:2.3.5")
+                implementation("io.ktor:ktor-client-cio:2.3.6")
 
                 // Logging
                 implementation("org.slf4j:slf4j-simple:2.0.9")
diff --git a/waltid-sdjwt/build.gradle.kts b/waltid-sdjwt/build.gradle.kts
index 7e8f0a282..e866cce25 100644
--- a/waltid-sdjwt/build.gradle.kts
+++ b/waltid-sdjwt/build.gradle.kts
@@ -18,7 +18,7 @@ repositories {
 @OptIn(org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi::class)
 kotlin {
     jvm {
-        jvmToolchain(18) // 16 possible?
+        jvmToolchain(17) // 16 possible?
         withJava()
         testRuns["test"].executionTask.configure {
             useJUnitPlatform()
@@ -105,7 +105,7 @@ kotlin {
         }
         val jvmMain by getting {
             dependencies {
-                implementation("com.nimbusds:nimbus-jose-jwt:9.37")
+                implementation("com.nimbusds:nimbus-jose-jwt:9.37.1")
             }
         }
         val jvmTest by getting {
diff --git a/waltid-verifiable-credentials/build.gradle.kts b/waltid-verifiable-credentials/build.gradle.kts
index ca6847489..381d9b7fd 100644
--- a/waltid-verifiable-credentials/build.gradle.kts
+++ b/waltid-verifiable-credentials/build.gradle.kts
@@ -40,12 +40,12 @@ kotlin {
                 implementation("io.github.optimumcode:json-schema-validator:0.0.2")
 
                 // Ktor client
-                implementation("io.ktor:ktor-client-core:2.3.5")
-                implementation("io.ktor:ktor-client-serialization:2.3.5")
-                implementation("io.ktor:ktor-client-content-negotiation:2.3.5")
-                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.5")
-                implementation("io.ktor:ktor-client-json:2.3.5")
-                implementation("io.ktor:ktor-client-logging:2.3.5")
+                implementation("io.ktor:ktor-client-core:2.3.6")
+                implementation("io.ktor:ktor-client-serialization:2.3.6")
+                implementation("io.ktor:ktor-client-content-negotiation:2.3.6")
+                implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.6")
+                implementation("io.ktor:ktor-client-json:2.3.6")
+                implementation("io.ktor:ktor-client-logging:2.3.6")
 
                 // Coroutines
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
@@ -72,7 +72,7 @@ kotlin {
         val jvmMain by getting {
             dependencies {
                 // Ktor client
-                implementation("io.ktor:ktor-client-cio:2.3.5")
+                implementation("io.ktor:ktor-client-cio:2.3.6")
 
                 // Logging
                 implementation("org.slf4j:slf4j-simple:2.0.9")
diff --git a/waltid-verifier/build.gradle.kts b/waltid-verifier/build.gradle.kts
index 65fd9c3e7..370b03159 100644
--- a/waltid-verifier/build.gradle.kts
+++ b/waltid-verifier/build.gradle.kts
@@ -5,7 +5,7 @@ import com.github.jk1.license.render.ReportRenderer*/
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 object Versions {
-    const val KOTLIN_VERSION = "1.9.10" // also change 2 plugins
+    const val KOTLIN_VERSION = "1.9.20" // also change 2 plugins
     const val KTOR_VERSION = "2.3.6" // also change 1 plugin
     const val COROUTINES_VERSION = "1.7.3"
     const val EXPOSED_VERSION = "0.43.0"
@@ -16,8 +16,8 @@ plugins {
     kotlin("jvm") // Versions.KOTLIN_VERSION
     id("org.jetbrains.kotlin.plugin.serialization") // Versions.KOTLIN_VERSION
 
-    id("io.ktor.plugin") version "2.3.5" // Versions.KTOR_VERSION
-    id("org.owasp.dependencycheck") version "8.4.2"
+    id("io.ktor.plugin") version "2.3.6" // Versions.KTOR_VERSION
+    id("org.owasp.dependencycheck") version "8.4.3"
     id("com.github.jk1.dependency-license-report") version "2.5"
     application
     `maven-publish`
@@ -63,7 +63,7 @@ dependencies {
     implementation("io.ktor:ktor-server-cio-jvm:${Versions.KTOR_VERSION}")
 
     // Ktor server external libs
-    implementation("io.github.smiley4:ktor-swagger-ui:2.6.0")
+    implementation("io.github.smiley4:ktor-swagger-ui:2.7.1")
 
     // Ktor client
     implementation("io.ktor:ktor-client-core-jvm:${Versions.KTOR_VERSION}")