diff --git a/CHANGES.txt b/CHANGES.txt
index aa81caf..cc4f87e 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -34,6 +34,8 @@
  
 IMPROVEMENTS
 
+PIG-5126. Add doc about pig in zeppelin (zjffdu)
+
 PIG-5120: Let tez_local mode run without a jar file (knoguchi)
 
 PIG-3851: Upgrade jline to 2.11 (daijy)