diff --git a/Dockerfile b/Dockerfile
index a14a473..35867b2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM ekidd/rust-musl-builder:1.57.0@sha256:c18dbd9fcf3a4c0c66b8aacea5cf977ee38193efd7e98a55ee7bf9cd9954b221 as build
 
 # renovate: datasource=github-tags depName=nextcloud/notify_push versioning=semver
-ENV NOTIFY_PUSH_VERSION v0.3.0
+ENV NOTIFY_PUSH_VERSION v0.4.0
 
 RUN set -ex; \
     git clone --branch $NOTIFY_PUSH_VERSION https://github.com/nextcloud/notify_push.git .; \