diff --git a/docker/Dockerfile.scheduler b/docker/Dockerfile.scheduler
index ea45464..9d60def 100644
--- a/docker/Dockerfile.scheduler
+++ b/docker/Dockerfile.scheduler
@@ -4,6 +4,9 @@ ENV SERVER_NAME=":80"
 ENV CADDY_GLOBAL_OPTIONS="auto_https off"
 ENV APP_RUNTIME="Runtime\\FrankenPhpSymfony\\Runtime"
 
+ARG APP_VERSION="0.dev"
+ENV APP_VERSION="${APP_VERSION}"
+
 RUN install-php-extensions \
 	pdo_mysql \
 	gd \
diff --git a/docker/Dockerfile.worker b/docker/Dockerfile.worker
index 912132d..da9f337 100644
--- a/docker/Dockerfile.worker
+++ b/docker/Dockerfile.worker
@@ -4,6 +4,9 @@ ENV SERVER_NAME=":80"
 ENV CADDY_GLOBAL_OPTIONS="auto_https off"
 ENV APP_RUNTIME="Runtime\\FrankenPhpSymfony\\Runtime"
 
+ARG APP_VERSION="0.dev"
+ENV APP_VERSION="${APP_VERSION}"
+
 RUN install-php-extensions \
 	pdo_mysql \
 	gd \