diff --git a/Containers/domaincheck/Dockerfile b/Containers/domaincheck/Dockerfile
index 360cc3d7..08e7dbe0 100644
--- a/Containers/domaincheck/Dockerfile
+++ b/Containers/domaincheck/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18.2
+FROM alpine:3.18.3
 RUN set -ex; \
     apk add --no-cache bash lighttpd netcat-openbsd; \
     adduser -S www-data -G www-data; \