diff --git a/opensearch.Dockerfile b/opensearch.Dockerfile
index 2bcf113..fa1e43d 100644
--- a/opensearch.Dockerfile
+++ b/opensearch.Dockerfile
@@ -52,6 +52,8 @@ RUN mkdir -p /usr/share/opensearch/data && \
     echo "-XX:+UseContainerSupport" >> /usr/share/opensearch/config/jvm.options.d/synology.options && \
     echo "-Dorg.opensearch.bootstrap.start_timeout=60s" >> /usr/share/opensearch/config/jvm.options.d/synology.options && \
     echo "-Dopensearch.logger.level=INFO" >> /usr/share/opensearch/config/jvm.options.d/synology.options && \
+    echo "--add-opens=java.base/sun.misc=ALL-UNNAMED" >> /usr/share/opensearch/config/jvm.options.d/synology.options && \
+    echo "--add-opens=java.base/java.util=ALL-UNNAMED" >> /usr/share/opensearch/config/jvm.options.d/synology.options && \
     echo '#!/bin/bash' > /usr/share/opensearch/start-opensearch.sh && \
     echo 'echo "Starting OpenSearch with Java 21..."' >> /usr/share/opensearch/start-opensearch.sh && \
     echo 'echo "Java version:"' >> /usr/share/opensearch/start-opensearch.sh && \