diff --git a/docker/etherpad/Dockerfile b/docker/etherpad/Dockerfile
index ff9ad87024..0a4831dab0 100644
--- a/docker/etherpad/Dockerfile
+++ b/docker/etherpad/Dockerfile
@@ -16,6 +16,8 @@
 # Adapted from the upstream Dockerfile because they haven't kept up with
 # recent releases.
 
+# Force a new build: Thu, 02 May 2024 20:51:03 +0000
+
 # Etherpad Lite Dockerfile
 #
 # https://github.com/ether/etherpad-lite