diff --git a/app/build.gradle b/app/build.gradle
index dc8f2f55..c943e8ba 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,11 +14,11 @@ def gitDescribe = { ->
 }
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdk
 
     defaultConfig {
-        minSdkVersion 32 // leave at 32 for robolectric tests
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdk 32 // leave at 32 for robolectric tests
+        targetSdk rootProject.ext.targetSdk
         versionNameSuffix "-$gitDescribe"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         testInstrumentationRunnerArguments disableAnalytics: 'true'
diff --git a/build.gradle b/build.gradle
index 96e9d4ff..b25c5dd0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,9 +20,9 @@ plugins {
 }
 
 ext {
-    compileSdkVersion = 33
-    minSdkVersion = 32
-    targetSdkVersion = 33
+    compileSdk = 33
+    minSdk = 32
+    targetSdk = 33
 }
 
 apply from: 'gradle/dependencies.gradle'
diff --git a/contactsbackup/build.gradle b/contactsbackup/build.gradle
index 3ee22792..f0f1f5e1 100644
--- a/contactsbackup/build.gradle
+++ b/contactsbackup/build.gradle
@@ -9,12 +9,12 @@ plugins {
 }
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdk
 
     defaultConfig {
         applicationId "org.calyxos.backup.contacts"
-        minSdkVersion rootProject.ext.minSdkVersion
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdk rootProject.ext.minSdk
+        targetSdk rootProject.ext.targetSdk
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         testInstrumentationRunnerArguments disableAnalytics: 'true'
diff --git a/storage/demo/build.gradle b/storage/demo/build.gradle
index 9c983784..b42c797a 100644
--- a/storage/demo/build.gradle
+++ b/storage/demo/build.gradle
@@ -11,12 +11,12 @@ plugins {
 }
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdk
 
     defaultConfig {
         applicationId "de.grobox.storagebackuptester"
-        minSdkVersion rootProject.ext.minSdkVersion
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdk rootProject.ext.minSdk
+        targetSdk rootProject.ext.targetSdk
         versionCode 20
         versionName "0.9.7"
 
diff --git a/storage/lib/build.gradle b/storage/lib/build.gradle
index a4d6e129..e2f032d5 100644
--- a/storage/lib/build.gradle
+++ b/storage/lib/build.gradle
@@ -13,11 +13,11 @@ plugins {
 }
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdk
 
     defaultConfig {
-        minSdkVersion rootProject.ext.minSdkVersion
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdk rootProject.ext.minSdk
+        targetSdk rootProject.ext.targetSdk
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         testInstrumentationRunnerArguments disableAnalytics: 'true'