diff --git a/src/tooling/docs-assembler/assembler.yml b/src/tooling/docs-assembler/assembler.yml
index 0abf0da9..267994b9 100644
--- a/src/tooling/docs-assembler/assembler.yml
+++ b/src/tooling/docs-assembler/assembler.yml
@@ -82,6 +82,8 @@ references:
   ecs-logging-ruby:
   ecs-logging:
   ecs:
+    current: "9.0"
+    next: main
   eland:
   elastic-serverless-forwarder:
   elasticsearch-hadoop: