diff --git a/xwords4/android/app/build.gradle b/xwords4/android/app/build.gradle
index b989b3332..5a9e97a8e 100644
--- a/xwords4/android/app/build.gradle
+++ b/xwords4/android/app/build.gradle
@@ -48,7 +48,7 @@ android {
     defaultConfig {
         // HostApduService requires 19. But is it a problem?
         minSdkVersion 14
-        targetSdkVersion 28     // must match ../build.gradle
+        targetSdkVersion 29     // must match ../build.gradle
         versionCode VERSION_CODE_BASE
         versionName VERSION_NAME
     }
diff --git a/xwords4/android/build.gradle b/xwords4/android/build.gradle
index 053cc9433..fd38f113a 100644
--- a/xwords4/android/build.gradle
+++ b/xwords4/android/build.gradle
@@ -32,7 +32,7 @@ subprojects {
     afterEvaluate {project ->
         if (project.hasProperty("android")) {
             android {
-                compileSdkVersion 28 // must match app/build.gradle
+                compileSdkVersion 29 // must match app/build.gradle
             }
         }
     }