diff --git a/hosts/jenkins/etc/default/jenkins b/hosts/jenkins/etc/default/jenkins
index 1c9908642ced60db5d845c13716f0faf22aa6d89..bb2a1e3102a146836598c0696df1ff5939ddc296 100644
--- a/hosts/jenkins/etc/default/jenkins
+++ b/hosts/jenkins/etc/default/jenkins
@@ -31,7 +31,7 @@ JAVA_ARGS="$JAVA_ARGS -XX:+UseG1GC -XX:+ExplicitGCInvokesConcurrent -XX:+Paralle
 JAVA_ARGS="$JAVA_ARGS -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:+UnlockDiagnosticVMOptions -XX:G1SummarizeRSetStatsPeriod=1"
 # h01ger trying stuff
 JAVA_ARGS="$JAVA_ARGS -XX:+UseCompressedOops"
-MALLOC_ARENA_MAX=4
+MALLOC_ARENA_MAX=2
 
 # make jenkins listen on IPv4 address
 #JAVA_ARGS="-Djava.net.preferIPv4Stack=true"