diff --git a/docker/caddy/Dockerfile b/docker/caddy/Dockerfile
index 48912d9..ee0417c 100644
--- a/docker/caddy/Dockerfile
+++ b/docker/caddy/Dockerfile
@@ -15,7 +15,7 @@ RUN set -ex \
 	&& chmod +x /root/caddy.sh \
 	&& /root/caddy.sh \
 	&& rm -fv /root/caddy.sh \
-	&& caddy version
+	&& caddy -version
 
 # set up nsswitch.conf for Go's "netgo" implementation
 # see: https://github.com/docker-library/golang/blob/1eb096131592bcbc90aa3b97471811c798a93573/1.14/alpine3.12/Dockerfile#L9
diff --git a/docker/caddy/Dockerfile.architecture b/docker/caddy/Dockerfile.architecture
index 7729cd5..d27c34b 100644
--- a/docker/caddy/Dockerfile.architecture
+++ b/docker/caddy/Dockerfile.architecture
@@ -16,7 +16,7 @@ RUN set -ex \
 	&& chmod +x /root/caddy.sh \
 	&& /root/caddy.sh "${TARGETPLATFORM}" \
 	&& rm -fv /root/caddy.sh \
-	&& caddy version
+	&& caddy -version
 
 # set up nsswitch.conf for Go's "netgo" implementation
 # see: https://github.com/docker-library/golang/blob/1eb096131592bcbc90aa3b97471811c798a93573/1.14/alpine3.12/Dockerfile#L9