diff --git a/pf-websocket.Dockerfile b/pf-websocket.Dockerfile
index 58eed9b..fc892df 100644
--- a/pf-websocket.Dockerfile
+++ b/pf-websocket.Dockerfile
@@ -2,6 +2,8 @@ FROM composer:2.3.10
 COPY websocket /app
 WORKDIR /app
 
+RUN apk update && apk add git composer npm nodejs
+
 RUN composer install
 
 ENTRYPOINT ["/usr/local/bin/php", "cmd.php"]