diff --git a/Dockerfile b/Dockerfile
index e5370a7..3f87fce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ ARG CONTAINER_LIBRARY
 # renovate: datasource=github-releases depName=caddyserver/caddy
 ENV CADDY_VERSION="${CADDY_VERSION:-v2.6.4}"
 # renovate: datasource=github-releases depName=thegeeklab/wait-for
-ENV WAIT_FOR_VERSION="${WAIT_FOR_VERSION:-v0.3.0}"
+ENV WAIT_FOR_VERSION="${WAIT_FOR_VERSION:-v0.4.0}"
 # renovate: datasource=github-releases depName=thegeeklab/retry
 ENV RETRY_VERSION="${RETRY_VERSION:-v0.4.0}"
 # renovate: datasource=github-releases depName=raviqqe/muffet