diff --git a/_docker/Dockerfile b/_docker/Dockerfile
index 20151b5..fc542a2 100644
--- a/_docker/Dockerfile
+++ b/_docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/nginx:1.21.5-alpine
+FROM docker.io/library/nginx:1.21.6-alpine
 
 COPY ./public/ /usr/share/nginx/html/