diff --git a/server/Dockerfile b/server/Dockerfile
index f1f63afd..999f5128 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -43,8 +43,6 @@ ADD ./root /var/spool/cron/
 RUN chmod +x  /var/spool/cron/root
 
 
-RUN update-alternatives --set java java-11-openjdk.x86_64
-
 EXPOSE 4064
 EXPOSE 4063
 
diff --git a/slave/Dockerfile b/slave/Dockerfile
index 9a3bae8a..2bcb9b13 100644
--- a/slave/Dockerfile
+++ b/slave/Dockerfile
@@ -4,7 +4,7 @@ LABEL org.opencontainers.image.authors="OME"
 
 ARG NAME=ome
 
-ARG GRADLEVER=6.9.3
+ARG GRADLEVER=6.8.2
 
 ADD ./settings.env  /home/settings.env
 RUN chmod +x /home/settings.env
@@ -63,7 +63,6 @@ RUN dnf -y update
 RUN dnf -y install blosc
 
 RUN dnf install -y cronie
-RUN update-alternatives --set java java-11-openjdk.x86_64
 
 EXPOSE 14064
 EXPOSE 14063
diff --git a/slave/gradle.properties b/slave/gradle.properties
new file mode 100644
index 00000000..cbd798e9
--- /dev/null
+++ b/slave/gradle.properties
@@ -0,0 +1 @@
+org.gradle.java.home=/etc/alternatives/java_sdk_11