diff --git a/Dockerfile b/Dockerfile
index c7b5c08..ab693c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,7 @@ RUN SITE=${SITE} npm run build:site
 FROM docker.io/library/alpine:latest
 ARG SITE
 
-RUN apk add --no-cache lighttpd && \
+RUN apk add --no-cache lighttpd wget && \
 	apk add --no-cache python3 py3-requests py3-itsdangerous py3-magic
 RUN --mount=type=cache,target=/root/.cache/pip \
 	apk add --no-cache py3-pip && \
@@ -53,7 +53,7 @@ ENV ZAMMAD_URL=https://ticket.z31.it
 ENV ZAMMAD_GROUP=""
 
 HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
-	CMD curl -sSf http://127.0.0.1/ > /dev/null || exit 1
+	CMD wget --no-verbose --tries=1 --spider http://127.0.0.1/ || exit 1
 
 # Reroute stdout to a new file descriptor so that Lighttpd can use it as the
 # access log. See http.conf and here: