diff --git a/roles/pvc/templates/zookeeper/environment.j2 b/roles/pvc/templates/zookeeper/environment.j2
index d42c5c3..8e763b2 100644
--- a/roles/pvc/templates/zookeeper/environment.j2
+++ b/roles/pvc/templates/zookeeper/environment.j2
@@ -11,6 +11,8 @@ JMXLOCALONLY=false
 #   Increase the maximum buffer size from 1048575 (1MB) to 67108864 (64MB); required to allow a single `create`
 #   transaction, in the /api/v1/restore specifically, of >1MB of data; 64MB seems a reasonable limit given my
 #   cluster is only ~5.2MB of raw JSON data and beyond 12x that seems like a cluster too large for PVC.
-JAVA_OPTS="-Djava.net.preferIPv4Stack=True -Djute.maxbuffer=67108864"
+# Xms/Xmx=128M
+#   Reduce the Java memory size to minimize RAM consumption by Zookeeper.
+JAVA_OPTS="-Djava.net.preferIPv4Stack=True -Djute.maxbuffer=67108864 -Xms128M -Xmx128M"
 JAVA=/usr/bin/java
 CLASSPATH="/etc/zookeeper/conf:/usr/share/java/jline.jar:/usr/share/java/log4j-1.2.jar:/usr/share/java/xercesImpl.jar:/usr/share/java/xmlParserAPIs.jar:/usr/share/java/netty.jar:/usr/share/java/slf4j-api.jar:/usr/share/java/slf4j-log4j12.jar:/usr/share/java/zookeeper.jar"