diff --git a/docker/Dockerfile_app b/docker/Dockerfile_app
index ec79d2e..18bc01d 100644
--- a/docker/Dockerfile_app
+++ b/docker/Dockerfile_app
@@ -1,4 +1,4 @@
-FROM openjdk:13-jdk-alpine
+FROM openjdk:15-ea-jdk-alpine
 
 RUN apk --no-cache add libpcap npm