diff --git a/skywalking/Dockerfile-elasticsearch b/skywalking/Dockerfile-elasticsearch
index cfb27b00..1540fedf 100644
--- a/skywalking/Dockerfile-elasticsearch
+++ b/skywalking/Dockerfile-elasticsearch
@@ -1 +1 @@
-FROM elasticsearch:8.18.2@sha256:d29430e894e3722b11d2aad6f1b4158d760809f643f946351490a60b6f11cbfe
+FROM elasticsearch:9.4.2@sha256:f5c2b9ae3fcc6bf976db587e47f1aaec66640cbf997a33fdd3a8ebc2fd287d47