diff --git a/oeffi/build.gradle b/oeffi/build.gradle
index fbba455..e9d69c5 100644
--- a/oeffi/build.gradle
+++ b/oeffi/build.gradle
@@ -15,7 +15,7 @@ dependencies {
     implementation 'androidx.recyclerview:recyclerview:1.2.1'
     implementation 'androidx.coordinatorlayout:coordinatorlayout:1.2.0'
     implementation 'androidx.drawerlayout:drawerlayout:1.1.1'
-    implementation 'androidx.core:core:1.8.0'
+    implementation 'androidx.core:core:1.9.0'
     implementation 'androidx.activity:activity:1.5.1'
     //noinspection GradleDependency
     implementation 'com.squareup.okhttp3:okhttp:3.12.13'