diff --git a/dockerfiles/client/Dockerfile b/dockerfiles/client/Dockerfile
index 67f844c..fcac5ab 100644
--- a/dockerfiles/client/Dockerfile
+++ b/dockerfiles/client/Dockerfile
@@ -1,6 +1,6 @@
 # This Dockerfile is to build Docker image "deminy/swoole-by-examples:client".
 # @see https://hub.docker.com/r/deminy/swoole-by-examples
-FROM phpswoole/swoole:5.1
+FROM phpswoole/swoole:5.1-php8.2
 
 RUN \
     set -ex && \
diff --git a/dockerfiles/server/Dockerfile b/dockerfiles/server/Dockerfile
index 946c89f..e490d91 100644
--- a/dockerfiles/server/Dockerfile
+++ b/dockerfiles/server/Dockerfile
@@ -1,6 +1,6 @@
 # This Dockerfile is to build Docker image "deminy/swoole-by-examples:server".
 # @see https://hub.docker.com/r/deminy/swoole-by-examples
-FROM phpswoole/swoole:5.1
+FROM phpswoole/swoole:5.1-php8.2
 
 COPY ./rootfilesystem /