diff --git a/Dockerfile b/Dockerfile
index e6273fa..3ef59d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,12 +7,12 @@ LABEL AlternativeImageName="wollud1969/build-env-java"
 
 
 RUN apt update 
-RUN apt install software-properties-common 
+RUN apt install -y software-properties-common 
 RUN curl https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public > adoptopenjdk.key 
 RUN apt-key add adoptopenjdk.key 
 RUN add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/ 
 RUN apt update 
-RUN apt install adoptopenjdk-8-hotspot 
+RUN apt install -y adoptopenjdk-8-hotspot 
 RUN apt install -y maven 
 RUN rm -rf /var/lib/apt/lists/*