diff --git a/build/Dockerfile b/build/Dockerfile
index 160ed0d5..bfb605a4 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -23,7 +23,7 @@ ENV MODE="cluster" \
     TOMCAT_ACCESSLOG_ENABLED="false" \
     TIME_ZONE="Asia/Shanghai"
 
-ARG NACOS_VERSION=2.4.2
+ARG NACOS_VERSION=2.4.2.1
 ARG HOT_FIX_FLAG=""
 
 WORKDIR $BASE_DIR
diff --git a/build/Dockerfile.Slim b/build/Dockerfile.Slim
index 8d05d535..987cf542 100644
--- a/build/Dockerfile.Slim
+++ b/build/Dockerfile.Slim
@@ -1,6 +1,6 @@
 FROM amd64/buildpack-deps:buster-curl as installer
 
-ARG NACOS_VERSION=2.4.2
+ARG NACOS_VERSION=2.4.2.1
 ARG HOT_FIX_FLAG=""
 
 RUN set -x \
diff --git a/example/.env b/example/.env
index 9b98c7d8..3af8fc9c 100644
--- a/example/.env
+++ b/example/.env
@@ -1 +1 @@
-NACOS_VERSION=v2.4.2
+NACOS_VERSION=v2.4.2.1