diff --git a/.github/actions/build-core/action.yml b/.github/actions/build-core/action.yml
index e9b3ef7ff..c1862d726 100644
--- a/.github/actions/build-core/action.yml
+++ b/.github/actions/build-core/action.yml
@@ -20,7 +20,7 @@ runs:
       if: steps.corecache.outputs.cache-hit != 'true'
       uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f
       with:
-        go-version-file: 'mobilecore-src/go.mod'
+        go-version: '1.20.6'
     - name: Build mobile core
       if: steps.corecache.outputs.cache-hit != 'true'
       run: |
diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index ae46dcc8c..13cffa95f 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -9,7 +9,7 @@ runs:
     - name: Set up JDK
       uses: actions/setup-java@v3
       with:
-        java-version: 11
+        java-version: 17
         distribution: 'temurin'
     - name: Show java version
       shell: bash
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e525fc509..5f282e241 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Spotless
         run: ./gradlew spotlessCheck
       - name: Test
-        run: ./gradlew testDebug testAccDebug holder:lintAccDebug verifier:lintAccDebug
+        run: ./gradlew testAccDebugUnitTest verifier:testAccDebugUnitTest
       - name: Emulator Test
         if: "!contains(github.event.pull_request.labels.*.name, 'skip-screenshot-tests')"
         uses: reactivecircus/android-emulator-runner@v2
diff --git a/build.gradle b/build.gradle
index 33a126d97..7eaf13940 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,10 +52,10 @@ allprojects {
 
         project.plugins.withId("com.android.base") {
             android {
-                compileSdkVersion 33
+                compileSdkVersion 34
                 defaultConfig {
                     minSdkVersion 23
-                    targetSdkVersion 33
+                    targetSdkVersion 34
                 }
                 compileOptions {
                     sourceCompatibility JavaVersion.VERSION_1_8
diff --git a/gradle.properties b/gradle.properties
index f4e31989b..dd48dfbae 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -28,4 +28,7 @@ android.useAndroidX=true
 # Automatically convert third-party libraries to use AndroidX
 android.enableJetifier=false
 # Kotlin code style for this project: "official" or "obsolete":
-kotlin.code.style=official
\ No newline at end of file
+kotlin.code.style=official
+android.defaults.buildfeatures.buildconfig=true
+android.nonTransitiveRClass=false
+android.nonFinalResIds=false
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index d0718a52e..260353c8f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,38 +1,38 @@
 [versions]
-agp = "7.4.2"
+agp = "8.1.1"
 androidx-appcompat = "1.6.1"
 androidx-arch-core = "2.2.0"
-androidx-camera = "1.3.0-alpha04"
-androidx-core = "1.9.0"
-androidx-fragment = "1.5.5"
-androidx-lifecycle = "2.5.1"
-androidx-navigation = "2.5.3"
+androidx-camera = "1.3.0"
+androidx-core = "1.12.0"
+androidx-fragment = "1.6.2"
+androidx-lifecycle = "2.6.2"
+androidx-navigation = "2.7.5"
 androidx-orchestrator = "1.4.2"
-androidx-preference = "1.2.0"
-androidx-room = "2.5.0"
+androidx-preference = "1.2.1"
+androidx-room = "2.6.0"
 androidx-test = "1.5.0"
 androidx-work = "2.8.1"
 bouncycastle = "1.72"
 certificatetransparency = "1.1.1"
-coroutines = "1.6.4"
+coroutines = "1.7.3"
 groupie = "2.9.0"
-koin = "3.2.2"
+koin = "3.5.0"
 # @pin update Kotlin manually
-kotlin = "1.8.10"
+kotlin = "1.9.20"
 mockk = "1.13.4"
 moshi = "1.14.0"
 retrofit = "2.9.0"
 uiautomator = "2.2.0"
 
 [libraries]
-androidx-browser = "androidx.browser:browser:1.5.0"
+androidx-browser = "androidx.browser:browser:1.6.0"
 androidx-core = { module = "androidx.core:core-ktx", version.ref = "androidx-core" }
 androidx-core-testing = { module = "androidx.arch.core:core-testing", version.ref = "androidx-arch-core" }
 androidx-preference = { module = "androidx.preference:preference-ktx", version.ref = "androidx-preference" }
 androidx-security-crypto = "androidx.security:security-crypto:1.0.0"
 androidx-test-core = { module = "androidx.test:core-ktx", version.ref = "androidx-test" }
 androidx-test-junit = "androidx.test.ext:junit-ktx:1.1.5"
-androidx-test-monitor = "androidx.test:monitor:1.6.0"
+androidx-test-monitor = "androidx.test:monitor:1.6.1"
 androidx-test-orchestrator = { module = "androidx.test:orchestrator", version.ref = "androidx-orchestrator" }
 androidx-test-rules = { module = "androidx.test:rules", version.ref = "androidx-test" }
 androidx-test-runner = "androidx.test:runner:1.5.2"
@@ -47,8 +47,8 @@ certificatetransparency-android = { module = "com.appmattus.certificatetranspare
 constraintlayout = "androidx.constraintlayout:constraintlayout:2.1.4"
 coroutines-android = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-android", version.ref = "coroutines" }
 coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "coroutines" }
-crashlytics = "com.google.firebase:firebase-crashlytics-ktx:18.3.5"
-desugar = "com.android.tools:desugar_jdk_libs:2.0.2"
+crashlytics = "com.google.firebase:firebase-crashlytics-ktx:18.5.1"
+desugar = "com.android.tools:desugar_jdk_libs:2.0.4"
 espresso-core = "androidx.test.espresso:espresso-core:3.5.1"
 fragment = { module = "androidx.fragment:fragment-ktx", version.ref = "androidx-fragment" }
 fragment-testing = { module = "androidx.fragment:fragment-testing", version.ref = "androidx-fragment" }
@@ -60,8 +60,8 @@ koin-test-junit4 = { module = "io.insert-koin:koin-test-junit4", version.ref = "
 lifecycle-livedata = { module = "androidx.lifecycle:lifecycle-livedata-ktx", version.ref = "androidx-lifecycle" }
 lifecycle-viewmodel = { module = "androidx.lifecycle:lifecycle-viewmodel-ktx", version.ref = "androidx-lifecycle" }
 lottie = "com.airbnb.android:lottie:6.0.0"
-material = "com.google.android.material:material:1.8.0"
-mlkit-barcode = "com.google.android.gms:play-services-mlkit-barcode-scanning:18.1.0"
+material = "com.google.android.material:material:1.10.0"
+mlkit-barcode = "com.google.android.gms:play-services-mlkit-barcode-scanning:18.3.0"
 mockk = { module = "io.mockk:mockk", version.ref = "mockk" }
 mockk-android = { module = "io.mockk:mockk-android", version.ref = "mockk" }
 moshi-adapters = { module = "com.squareup.moshi:moshi-adapters", version.ref = "moshi" }
@@ -78,7 +78,7 @@ okhttp-tls = { module = "com.squareup.okhttp3:okhttp-tls" }
 openid-appauth = "net.openid:appauth:0.11.1"
 retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "retrofit" }
 retrofit-moshi = { module = "com.squareup.retrofit2:converter-moshi", version.ref = "retrofit" }
-robolectric = "org.robolectric:robolectric:4.9.2"
+robolectric = "org.robolectric:robolectric:4.10.3"
 room = { module = "androidx.room:room-ktx", version.ref = "androidx-room" }
 room-compiler = { module = "androidx.room:room-compiler", version.ref = "androidx-room" }
 room-runtime = { module = "androidx.room:room-runtime", version.ref = "androidx-room" }
@@ -90,7 +90,7 @@ uiautomator = { module = "androidx.test.uiautomator:uiautomator", version.ref =
 viewpager2 = "androidx.viewpager2:viewpager2:1.0.0"
 work-runtime = { module = "androidx.work:work-runtime-ktx", version.ref = "androidx-work" }
 work-testing = { module = "androidx.work:work-testing", version.ref = "androidx-work" }
-zxing-core = "com.google.zxing:core:3.5.1"
+zxing-core = "com.google.zxing:core:3.5.2"
 
 [bundles]
 groupie = [
@@ -106,9 +106,9 @@ googleServices = "com.google.gms.google-services:4.3.15"
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 kotlin-parcelize = { id = "org.jetbrains.kotlin.plugin.parcelize", version.ref = "kotlin" }
 # @pin dependent on Kotlin version
-ksp = "com.google.devtools.ksp:1.8.10-1.0.9"
+ksp = "com.google.devtools.ksp:1.9.20-1.0.14"
 navigation-safeargs-kotlin = { id = "androidx.navigation.safeargs.kotlin", version.ref = "androidx-navigation" }
-shot = "shot:5.14.1"
+shot = "shot:6.0.0"
 spotless = "com.diffplug.spotless:5.10.1"
 versionCatalogUpdate = "nl.littlerobots.version-catalog-update:0.7.0"
 versions = "com.github.ben-manes.versions:0.46.0"
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ae04661ee..da1db5f04 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/holder/src/test/java/nl/rijksoverheid/ctr/LiveDataTestUtil.kt b/holder/src/test/java/nl/rijksoverheid/ctr/LiveDataTestUtil.kt
index fa5290563..e1b1a84db 100644
--- a/holder/src/test/java/nl/rijksoverheid/ctr/LiveDataTestUtil.kt
+++ b/holder/src/test/java/nl/rijksoverheid/ctr/LiveDataTestUtil.kt
@@ -16,7 +16,7 @@ fun <T> LiveData<T>.getOrAwaitValue(
     var data: T? = null
     val latch = CountDownLatch(1)
     val observer = object : Observer<T> {
-        override fun onChanged(o: T?) {
+        override fun onChanged(o: T) {
             data = o
             latch.countDown()
             this@getOrAwaitValue.removeObserver(this)
diff --git a/rdo b/rdo
index f73c66852..6781807dd 160000
--- a/rdo
+++ b/rdo
@@ -1 +1 @@
-Subproject commit f73c66852f008bea0fe886ea231fc516c0173073
+Subproject commit 6781807dd905e40cd5c4607a1b02a16078d83f4e
diff --git a/shared/src/main/java/nl/rijksoverheid/ctr/shared/livedata/Event.kt b/shared/src/main/java/nl/rijksoverheid/ctr/shared/livedata/Event.kt
index f99e09a95..c293a4476 100644
--- a/shared/src/main/java/nl/rijksoverheid/ctr/shared/livedata/Event.kt
+++ b/shared/src/main/java/nl/rijksoverheid/ctr/shared/livedata/Event.kt
@@ -50,9 +50,10 @@ data class Event<out T>(private val content: T) {
  * [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled.
  */
 class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> {
-    override fun onChanged(event: Event<T>?) {
-        event?.getContentIfNotHandled()?.let { value ->
-            onEventUnhandledContent(value)
+
+    override fun onChanged(value: Event<T>) {
+        value.getContentIfNotHandled()?.let {
+            onEventUnhandledContent(it)
         }
     }
 }
diff --git a/spotless.gradle b/spotless.gradle
index 2102d9101..e768722b4 100644
--- a/spotless.gradle
+++ b/spotless.gradle
@@ -2,7 +2,13 @@ apply plugin: "com.diffplug.spotless"
 
 spotless {
     kotlin {
-        target '**/*.kt'
+        target 'api/*.kt'
+        target 'appconfig/*.kt'
+        target 'design/*.kt'
+        target 'holder/*.kt'
+        target 'introduction/*.kt'
+        target 'qrscanner/*.kt'
+        target 'shared/*.kt'
         ktlint()
         trimTrailingWhitespace()
         indentWithSpaces()