diff --git a/deployer/src/main/bin/startup.sh b/deployer/src/main/bin/startup.sh
index 583c080a..fbde0431 100644
--- a/deployer/src/main/bin/startup.sh
+++ b/deployer/src/main/bin/startup.sh
@@ -81,7 +81,7 @@ esac
 
 JavaVersion=`$JAVA -version 2>&1 |awk 'NR==1{ gsub(/"/,""); print $3 }' | awk  -F '.' '{print $1}'`
 str=`file -L $JAVA | grep 64-bit`
-JAVA_OPTS="$JAVA_OPTS -Xss256k -XX:+AggressiveOpts -XX:-UseBiasedLocking -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=$base/logs"
+JAVA_OPTS="$JAVA_OPTS -Xss1m -XX:+AggressiveOpts -XX:-UseBiasedLocking -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=$base/logs"
 
 if [ $JavaVersion -ge 11 ] ; then
   #JAVA_OPTS="$JAVA_OPTS -Xlog:gc*:$base_log/gc.log:time "