diff --git a/compose.yml b/compose.yml
index 26d80ca..d1c6d9d 100644
--- a/compose.yml
+++ b/compose.yml
@@ -61,7 +61,7 @@ services:
         - "traefik.http.routers.${STACK_NAME}.rule=Host(`${DOMAIN}`)"
         - "traefik.http.routers.${STACK_NAME}.entrypoints=web-secure"
         - "traefik.http.routers.${STACK_NAME}.tls.certresolver=${LETS_ENCRYPT_ENV}"
-        - "coop-cloud.${STACK_NAME}.version=3.14.0+v1.93.0"
+        - "coop-cloud.${STACK_NAME}.version=4.0.0+v1.93.0"
         - "coop-cloud.${STACK_NAME}.timeout=${TIMEOUT:-120}"
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8008/health"]
diff --git a/release/4.0.0+v1.93.0 b/release/4.0.0+v1.93.0
new file mode 100644
index 0000000..744c636
--- /dev/null
+++ b/release/4.0.0+v1.93.0
@@ -0,0 +1,8 @@
+We had to rename some secrets: https://git.coopcloud.tech/coop-cloud/matrix-synapse/issues/35
+
+Copy the secrets:
+
+* `registration_shared_secret` to `registration`
+* `macaroon_secret_key` to `macaroon`
+
+Regeneration of these secrets should also work.
diff --git a/release/next b/release/next
deleted file mode 100644
index 8fb0078..0000000
--- a/release/next
+++ /dev/null
@@ -1,2 +0,0 @@
-Copy the secrets registration_shared_secret to registration and macaroon_secret_key to macaroon.
-Regeneration of these secrets should also work.