diff --git a/oeffi/build.gradle b/oeffi/build.gradle
index 23f3d6e..8d2d341 100644
--- a/oeffi/build.gradle
+++ b/oeffi/build.gradle
@@ -30,7 +30,7 @@ dependencies {
 
 android {
     compileSdkVersion 'android-31'
-    buildToolsVersion '30.0.3'
+    buildToolsVersion '33.0.0'
 
     defaultConfig {
         generatedDensities = ['hdpi', 'xhdpi']