diff --git a/DO_NOT_UPDATE.md b/DO_NOT_UPDATE.md
new file mode 100644
index 0000000..e9e76c2
--- /dev/null
+++ b/DO_NOT_UPDATE.md
@@ -0,0 +1,3 @@
+# DO NOT UPDATE
+
+Current version is 14.0.1 but stable-fpm points to 13.0.6 and downgrade is not supported.
diff --git a/README.md b/README.md
index c85a42d..765b36e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 # nextcloud
 
-docker compose for https://github.com/nextcloud/docker/
+docker compose files for https://github.com/nextcloud/docker/
+
+## 2018-10-11
+Do not update. Have a look at `DO_NOT-UPDATE.md` for further information.
 
 ## first start
 ```
diff --git a/docker/app/Dockerfile b/docker/app/Dockerfile
index 0149c38..63211f9 100644
--- a/docker/app/Dockerfile
+++ b/docker/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM nextcloud:fpm
+FROM nextcloud:stable-fpm
 
 RUN apt-get update && \
 	apt-get install -y --no-install-recommends \