diff --git a/test/api/functional/Dockerfile b/test/api/functional/Dockerfile
index d1298d291..2b16564ca 100644
--- a/test/api/functional/Dockerfile
+++ b/test/api/functional/Dockerfile
@@ -8,7 +8,7 @@ WORKDIR /build
 ##  Run the build if we don't already have a vinyldns-api.jar
 RUN if [ -f artifacts/vinyldns-api.jar ]; then cp artifacts/vinyldns-api.jar /opt/vinyldns; fi && \
     if [ ! -f /opt/vinyldns/vinyldns-api.jar ]; then \
-      env SBT_OPTS="-XX:+UseConcMarkSweepGC -Xmx4G -Xms1G" \
+      env SBT_OPTS="-Xmx2G -Xms512M -Xss2M -XX:MaxMetaspaceSize=2G" \
       sbt -Dbuild.scalafmtOnCompile=false -Dbuild.lintOnCompile=fase ";project api;coverageOff;assembly" \
       && cp artifacts/vinyldns-api.jar /opt/vinyldns/; \
     fi