Use gradle properties
diff --git a/.travis.yml b/.travis.yml
index b50f6fc..67996fa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -68,7 +68,7 @@
     script:
       - ./gradlew :LottieSample:assembleRelease
       - ./sign.sh
-      - ./gradlew :lottie:uploadArchives
+      - ./gradlew  -PNEXUS_USERNAME=$NEXUS_USERNAME -PNEXUS_PASSWORD=$NEXUS_PASSWORD :lottie:uploadArchives
 deploy:
   provider: releases
   api_key: $GITHUB_ACCESS_TOKEN