diff --git a/README.adoc b/README.adoc
index 0c6c146..f5a3df1 100644
--- a/README.adoc
+++ b/README.adoc
@@ -21,7 +21,7 @@ Caddy base image with https://github.com/caddy-dns/duckdns[duckdns module] added
 
 [source,shell]
 ----
-docker build --build-arg VERSION=2.8.4 -f ./caddy-duckdns.Dockerfile -t caddy-duckdns:2.8.4 .
+docker build --build-arg CADDY_VERSION=2.8.4 -f ./caddy-duckdns.Dockerfile -t caddy-duckdns:2.8.4 .
 ----
 
 === caddy-docker-ovh.Dockerfile
@@ -39,5 +39,5 @@ Gitea base image (rootless) with https://docs.gitea.com/administration/external-
 
 [source,shell]
 ----
-docker build --build-arg VERSION=1.22.0 -f ./gitea-external-renderers.Dockerfile -t gitea-external-renderers:1.22.0 .
+docker build --build-arg GITEA_VERSION=1.22.0 -f ./gitea-external-renderers.Dockerfile -t gitea-external-renderers:1.22.0 .
 ----
\ No newline at end of file
diff --git a/caddy-arm-duckdns.Dockerfile b/caddy-arm-duckdns.Dockerfile
index 88cc7d7..4e0e521 100644
--- a/caddy-arm-duckdns.Dockerfile
+++ b/caddy-arm-duckdns.Dockerfile
@@ -1,8 +1,8 @@
-ARG VERSION=latest
-FROM arm64v8/caddy:${VERSION}-builder AS builder
+ARG CADDY_VERSION=latest
+FROM arm64v8/caddy:${CADDY_VERSION}-builder AS builder
 
 RUN xcaddy build \
     --with github.com/caddy-dns/duckdns
 
-FROM arm64v8/caddy:${VERSION}
+FROM arm64v8/caddy:${CADDY_VERSION}
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy
\ No newline at end of file
diff --git a/caddy-duckdns.Dockerfile b/caddy-duckdns.Dockerfile
index c7122ca..ea8355c 100644
--- a/caddy-duckdns.Dockerfile
+++ b/caddy-duckdns.Dockerfile
@@ -1,8 +1,8 @@
-ARG VERSION=latest
-FROM caddy:${VERSION}-builder AS builder
+ARG CADDY_VERSION=latest
+FROM caddy:${CADDY_VERSION}-builder AS builder
 
 RUN xcaddy build \
     --with github.com/caddy-dns/duckdns
 
-FROM caddy:${VERSION}
+FROM caddy:${CADDY_VERSION}
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy
\ No newline at end of file
diff --git a/gitea-external-renderers.Dockerfile b/gitea-external-renderers.Dockerfile
index 6775f6e..3727123 100644
--- a/gitea-external-renderers.Dockerfile
+++ b/gitea-external-renderers.Dockerfile
@@ -1,5 +1,5 @@
-ARG VERSION=latest
-FROM gitea/gitea:${VERSION}-rootless
+ARG GITEA_VERSION=latest
+FROM gitea/gitea:${GITEA_VERSION}-rootless
 
 USER root
 RUN apk --no-cache add \