diff --git a/gradle-release.gradle b/gradle-release.gradle
index 9565c798..ea06a59d 100644
--- a/gradle-release.gradle
+++ b/gradle-release.gradle
@@ -31,12 +31,12 @@ afterEvaluate { project ->
     }
 
     task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
-        classifier = 'javadoc'
+        archiveClassifier = 'javadoc'
         from androidJavadocs.destinationDir
     }
 
     task androidSourcesJar(type: Jar) {
-        classifier = 'sources'
+        archiveClassifier = 'sources'
         from android.sourceSets.main.java.source
     }