diff --git a/2024/08/chat_demo1/tools/README.md b/2024/08/chat_demo1/tools/README.md
index 2e42fe5..a2ccf48 100644
--- a/2024/08/chat_demo1/tools/README.md
+++ b/2024/08/chat_demo1/tools/README.md
@@ -4,3 +4,6 @@ Seems like there is a behavior change between 7.4.4 and latest (7.8.0, too) imag
 
 28.12.2024 - last 7.4.x tag 7.4.8 version seems to be working well.
 Needs to be checked what's the difference between 7.4.8 and 7.5.0
+
+28.12.2024 - migrated to apache/kafka:latest and zookeeper:latest but kafka version needs to be synchronized with the client ones.
+             Switch it to 3.9.0 at least.