diff --git a/app/build.gradle b/app/build.gradle
index d4134c83..1a4cfda9 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -43,7 +43,7 @@ android {
     }
     kotlinOptions {
         jvmTarget = JavaVersion.VERSION_1_8.toString()
-        languageVersion = "1.4"
+        languageVersion = "1.6"
     }
     testOptions {
         unitTests.all {
diff --git a/app/libs/android.jar b/app/libs/android.jar
index 48002e33..5e9d53d4 100644
Binary files a/app/libs/android.jar and b/app/libs/android.jar differ
diff --git a/app/libs/libcore.jar b/app/libs/libcore.jar
index 94d798d2..2c0049b7 100644
Binary files a/app/libs/libcore.jar and b/app/libs/libcore.jar differ
diff --git a/build.gradle b/build.gradle
index 9af0718b..e3c1a554 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,11 +1,11 @@
 buildscript {
-    // 1.3.21 Android 10
     // 1.3.61 Android 11
     // 1.4.30 Android 12
+    // 1.6.10 Android 13
     // Check:
-    // https://android.googlesource.com/platform/external/kotlinc/+/refs/tags/android-12.0.0_r2/build.txt
-    ext.aosp_kotlin_version = '1.4.31'  // 1.4.30 breaks Kotlin plugin in Android Studio
-    ext.kotlin_version = '1.4.31'
+    // https://android.googlesource.com/platform/external/kotlinc/+/refs/tags/android-13.0.0_r3/build.txt
+    ext.aosp_kotlin_version = '1.6.10'  // 1.6.10-release-923 in AOSP
+    ext.kotlin_version = '1.6.10'
 
     repositories {
         mavenCentral()
diff --git a/contactsbackup/libs/com.android.vcard.jar b/contactsbackup/libs/com.android.vcard.jar
index f677ef61..8060d849 100644
Binary files a/contactsbackup/libs/com.android.vcard.jar and b/contactsbackup/libs/com.android.vcard.jar differ
diff --git a/gradle/dependencies.gradle b/gradle/dependencies.gradle
index 607af4e0..9a0ecb1b 100644
--- a/gradle/dependencies.gradle
+++ b/gradle/dependencies.gradle
@@ -1,7 +1,7 @@
 ext {
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#2943
-    ext.room_version = "2.3.0-beta02"
-    // https://android.googlesource.com/platform/external/protobuf/+/refs/tags/android-12.0.0_r2/java/pom.xml#7
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#3901
+    ext.room_version = "2.4.0-alpha05"
+    // https://android.googlesource.com/platform/external/protobuf/+/refs/tags/android-13.0.0_r3/java/pom.xml#7
     ext.protobuf_version = "3.9.1"
     junit4_version = "4.13.2"
     junit5_version = "5.5.2" // careful, upgrading this can change a Cipher's IV size in tests!?
@@ -37,58 +37,58 @@ ext.kotlin_libs = [
     ],
     coroutines: [
         dependencies.create('org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm') {
-            // https://android.googlesource.com/platform/prebuilts/tools/+/refs/tags/android-12.0.0_r2/common/m2/Android.bp#273
-            version { strictly '1.4.2' }
+            // https://android.googlesource.com/platform/external/kotlinx.coroutines/+/refs/tags/android-13.0.0_r3/CHANGES.md
+            version { strictly '1.5.2' }
         },
         dependencies.create('org.jetbrains.kotlinx:kotlinx-coroutines-android') {
-            // https://android.googlesource.com/platform/prebuilts/tools/+/refs/tags/android-12.0.0_r2/common/m2/Android.bp#288
-            version { strictly '1.3.0' }
+            // https://android.googlesource.com/platform/external/kotlinx.coroutines/+/refs/tags/android-13.0.0_r3/CHANGES.md
+            version { strictly '1.5.2' }
         },
     ],
 ]
 
 ext.std_libs = [
     androidx_core: [
-        // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#867
+        // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#1761
         dependencies.create('androidx.core:core') {
-            version { strictly '1.6.0' } // should be 1.6.0-beta03, but that is not even released, yet
+            version { strictly '1.9.0-alpha03' }
         },
-        // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#833
+        // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#1727
         dependencies.create('androidx.core:core-ktx') {
-            version { strictly '1.5.0-beta02' }
+            version { strictly '1.9.0-alpha03' }
         },
     ],
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#1189
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#2159
     androidx_fragment: dependencies.create('androidx.fragment:fragment-ktx') {
-        version { strictly '1.4.0-alpha01' }
+        version { strictly '1.4.0-alpha09' }
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#20
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#57
     androidx_activity: dependencies.create('androidx.activity:activity-ktx') {
-        version { strictly '1.3.0-alpha03' }
+        version { strictly '1.4.0-alpha02' }
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#2695
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#3597
     androidx_preference: dependencies.create('androidx.preference:preference') {
-        version { strictly '1.1.1' } // should be 1.2.0-alpha01, but that is not even released, yet
+        version { strictly '1.2.0-alpha01' }
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#1820
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#2754
     androidx_lifecycle_viewmodel_ktx: dependencies.create('androidx.lifecycle:lifecycle-viewmodel-ktx') {
-        version { strictly '2.4.0-alpha01' }
+        version { strictly '2.4.0-alpha03' } // 2.4.0-alpha04 in AOSP but was never released
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#1618
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#2550
     androidx_lifecycle_livedata_ktx: dependencies.create('androidx.lifecycle:lifecycle-livedata-ktx') {
-        version { strictly '2.4.0-alpha01' }
+        version { strictly '2.4.0-alpha03' } // 2.4.0-alpha04 in AOSP but was never released
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/extras/constraint-layout-x/Android.bp#39
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/extras/constraint-layout-x/Android.bp#39
     androidx_constraintlayout: dependencies.create('androidx.constraintlayout:constraintlayout') {
         version { strictly '2.0.0-beta7' }
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/androidx/Android.bp#969
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/androidx/Android.bp#1865
     androidx_documentfile: dependencies.create('androidx.documentfile:documentfile') {
-        version { strictly '1.1.0-alpha01' }
+        version { strictly '1.1.0-alpha01' } // 1.1.0-alpha02 in AOSP but not released yet
     },
-    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-12.0.0_r2/current/extras/material-design-x/Android.bp#6
+    // https://android.googlesource.com/platform/prebuilts/sdk/+/refs/tags/android-13.0.0_r3/current/extras/material-design-x/Android.bp#6
     com_google_android_material: dependencies.create('com.google.android.material:material') {
-        version { strictly '1.4.0' }
+        version { strictly '1.6.0-alpha03' } // 1.6.0-alpha0301 in AOSP
     },
 ]
 
diff --git a/storage/lib/build.gradle b/storage/lib/build.gradle
index e9544b3d..1860c9af 100644
--- a/storage/lib/build.gradle
+++ b/storage/lib/build.gradle
@@ -33,7 +33,7 @@ android {
     }
     kotlinOptions {
         jvmTarget = '1.8'
-        languageVersion = "1.4"
+        languageVersion = "1.6"
         freeCompilerArgs += '-Xopt-in=kotlin.RequiresOptIn'
         freeCompilerArgs += '-Xexplicit-api=strict'
     }