diff --git a/Dockerfile b/Dockerfile
index 9ff029e..73f19f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ USER root
 
 ENV TZ=Etc/GMT
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
-RUN apt update && apt -y install wget gnupg2 openjdk-17-jdk zip unzip curl sudo git software-properties-common pass axel
+RUN apt update && apt -y install wget gnupg2 zip unzip curl sudo git software-properties-common pass axel
 
 RUN mkdir -p /var/jenkins_home/jenkins && cd /var/jenkins_home/ &&\
     useradd -s /bin/bash -G sudo -d /var/jenkins_home -u 1000 jenkins &&\
@@ -16,7 +16,13 @@ ENTRYPOINT /var/jenkins_home/run
 COPY ./run /var/jenkins_home/
 RUN chown -R jenkins:jenkins /var/jenkins_home
 
-USER 1000
+USER jenkins
+
+SHELL ["/bin/bash", "-c"]
+
+RUN curl -s "https://get.sdkman.io" | bash
+RUN source "$HOME/.sdkman/bin/sdkman-init.sh" &&\
+    sdk install java `sdk ls java | grep librca | grep " 17" | grep -m 1 -Eo "(.?[0-9]{1,2}){3}" | head -1`-librca
 
 VOLUME /var/jenkins_home/jenkins