diff --git a/nextcloud/Dockerfile.15.0 b/nextcloud/Dockerfile.15.0
index 7a27e54..b693e72 100644
--- a/nextcloud/Dockerfile.15.0
+++ b/nextcloud/Dockerfile.15.0
@@ -1,6 +1,6 @@
-FROM hoellen/nginx-php:7.2
+FROM hoellen/nginx-php:7.3
 
-ARG NEXTCLOUD_VERSION=15.0.0RC2
+ARG NEXTCLOUD_VERSION=15.0.0RC3
 ARG GPG_nextcloud="2880 6A87 8AE4 23A2 8372  792E D758 99B9 A724 937A"
 
 ENV UID=991 GID=991 \