diff --git a/jenkins/dockerfile b/jenkins/dockerfile
index 0f8de26..33431a7 100644
--- a/jenkins/dockerfile
+++ b/jenkins/dockerfile
@@ -5,7 +5,11 @@ USER root
 RUN apt-get update && \
     apt-get -qy full-upgrade && \
     apt-get install -qy curl && \
-    curl -sSL https://get.docker.com/ | sh
-RUN apt-get install -y maven
-RUN apt install nodejs -y
-RUN git config --global --add safe.directory '*'
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+    curl -sSL https://get.docker.com/ | sh && \
+	apt-get install -y maven && \
+	apt-get install -y nodejs && \
+	apt-get install -y npm
+
+RUN git config --global --add safe.directory '*'
+
+USER jenkins
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