diff --git a/kubernetes/nginx/Dockerfile b/kubernetes/nginx/Dockerfile
index 8ddc0c125..f0ad2620e 100644
--- a/kubernetes/nginx/Dockerfile
+++ b/kubernetes/nginx/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.27.1
+FROM nginx:1.27
 ENV TZ Asia/Tokyo
 ARG BUILD_DATE
 ARG VCS_REF