diff --git a/android/KMAPro/kMAPro/build.gradle b/android/KMAPro/kMAPro/build.gradle
index a2b78f6775..3d547de523 100644
--- a/android/KMAPro/kMAPro/build.gradle
+++ b/android/KMAPro/kMAPro/build.gradle
@@ -10,8 +10,7 @@ ext.rootPath = '../../'
 apply from: "$rootPath/version.gradle"
 
 android {
-    compileSdkVersion 31
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     // Don't compress kmp files so they can be copied via AssetManager
     aaptOptions {
diff --git a/android/KMEA/app/build.gradle b/android/KMEA/app/build.gradle
index f1fb5b5ad9..18add56285 100644
--- a/android/KMEA/app/build.gradle
+++ b/android/KMEA/app/build.gradle
@@ -7,8 +7,7 @@ ext.rootPath = '../../'
 apply from: "$rootPath/version.gradle"
 
 android {
-    compileSdkVersion 31
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     defaultConfig {
         minSdkVersion 21
diff --git a/android/KMEA/app/src/main/AndroidManifest.xml b/android/KMEA/app/src/main/AndroidManifest.xml
index 4b73d68ed2..3ba6d1a835 100644
--- a/android/KMEA/app/src/main/AndroidManifest.xml
+++ b/android/KMEA/app/src/main/AndroidManifest.xml
@@ -8,6 +8,8 @@
       </intent>
     </queries>
 
+    <!-- https://developer.android.com/develop/ui/views/notifications/notification-permission#declare -->
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.VIBRATE" />
 
     <!-- Ensure these permissions aren't added by dependencies unless calling app intentionally adds them -->
diff --git a/android/README.md b/android/README.md
index 155faefcaf..9396abaaf9 100644
--- a/android/README.md
+++ b/android/README.md
@@ -110,8 +110,7 @@ Keyman Engine for Android library (**keyman-engine.aar**) is now ready to be imp
 4. Check that the `android{}` object, includes the following:
 ```gradle
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     // Don't compress kmp files so they can be copied via AssetManager
     aaptOptions {
diff --git a/android/Samples/KMSample1/app/build.gradle b/android/Samples/KMSample1/app/build.gradle
index 1907ccd20c..8a199c12b6 100644
--- a/android/Samples/KMSample1/app/build.gradle
+++ b/android/Samples/KMSample1/app/build.gradle
@@ -4,8 +4,7 @@ plugins {
 }
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     // Don't compress kmp files so they can be copied via AssetManager
     aaptOptions {
diff --git a/android/Samples/KMSample2/app/build.gradle b/android/Samples/KMSample2/app/build.gradle
index f88ba19732..4fe87cdec4 100644
--- a/android/Samples/KMSample2/app/build.gradle
+++ b/android/Samples/KMSample2/app/build.gradle
@@ -4,8 +4,7 @@ plugins {
 }
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     // Don't compress kmp files so they can be copied via AssetManager
     aaptOptions {
diff --git a/android/Tests/KeyboardHarness/app/build.gradle b/android/Tests/KeyboardHarness/app/build.gradle
index 89029f39db..d85e9c8801 100644
--- a/android/Tests/KeyboardHarness/app/build.gradle
+++ b/android/Tests/KeyboardHarness/app/build.gradle
@@ -7,7 +7,7 @@ ext.rootPath = '../../../'
 apply from: "$rootPath/version.gradle"
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 33
 
     // Don't compress kmp files so they can be copied via AssetManager
     aaptOptions {
diff --git a/oem/firstvoices/android/app/build.gradle b/oem/firstvoices/android/app/build.gradle
index 29577e4e0f..5b7c01d51c 100644
--- a/oem/firstvoices/android/app/build.gradle
+++ b/oem/firstvoices/android/app/build.gradle
@@ -8,8 +8,7 @@ ext.rootPath = '../../../../android'
 apply from: "$rootPath/version.gradle"
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.2"
+    compileSdkVersion 33
 
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_1_8