diff --git a/oeffi/build.gradle b/oeffi/build.gradle
index bc35daa..40a06b9 100644
--- a/oeffi/build.gradle
+++ b/oeffi/build.gradle
@@ -20,7 +20,7 @@ dependencies {
     compile 'com.squareup.okhttp3:logging-interceptor:3.12.3'
     compile 'com.google.guava:guava:28.0-android'
     compile 'org.osmdroid:osmdroid-android:6.1.0'
-    compile 'org.slf4j:slf4j-api:1.7.25'
+    compile 'org.slf4j:slf4j-api:1.7.28'
     compile 'com.github.tony19:logback-android:1.3.0-3'
     testCompile 'junit:junit:4.12'
 }