diff --git a/README.md b/README.md
index f065263..f711e21 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ docker run --name nacos-quick -e MODE=standalone -p 8848:8848 -p 9848:9848 -d na
   `example/.env`
 
 ```dotenv
-NACOS_VERSION=2.1.0
+NACOS_VERSION=v1.4.4
 ```
 
 Run the following command：
diff --git a/build/Dockerfile b/build/Dockerfile
index a97f26a..d70fca7 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -20,7 +20,7 @@ ENV MODE="cluster" \
     TOMCAT_ACCESSLOG_ENABLED="false" \
     TIME_ZONE="Asia/Shanghai"
 
-ARG NACOS_VERSION=2.1.0
+ARG NACOS_VERSION=1.4.4
 ARG HOT_FIX_FLAG=""
 
 WORKDIR $BASE_DIR
diff --git a/build/Dockerfile.Slim b/build/Dockerfile.Slim
index e0d8681..fe99ceb 100644
--- a/build/Dockerfile.Slim
+++ b/build/Dockerfile.Slim
@@ -1,6 +1,6 @@
 FROM amd64/buildpack-deps:buster-curl as installer
 
-ARG NACOS_VERSION=2.1.0
+ARG NACOS_VERSION=1.4.4
 ARG HOT_FIX_FLAG=""
 
 RUN set -x \
diff --git a/example/.env b/example/.env
index 279763d..e25a50e 100644
--- a/example/.env
+++ b/example/.env
@@ -1 +1 @@
-NACOS_VERSION=v2.1.0
+NACOS_VERSION=v1.4.4