diff --git a/docker/README.md b/docker/README.md
index 0a80554d..25131802 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -6,6 +6,8 @@ available tags:
  - `latest` (stable): same as the latest `v*`, built with debian stretch
  - `nightly` : built from the current state of `master`. This might break from time to time. 
 
+**Note**: Some changes may require database reset or config changes, see [#317](https://github.com/bpatrik/pigallery2/issues/317) (If you want to reduce the frequency of those, use stable builds (`latest`)
+
 We support multiple architectures, including `amd64`, `arm32v7`, `arm64v8`.