diff --git a/ChangeLog b/ChangeLog
index 38d2e142..3569d5d5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-2018.06.23, Version 1.21.0 (Stable)
+2018.06.23, Version 1.21.0 (Stable), e4983a9b0c152932f7553ff4a9ff189d2314cdcb
 
 Changes since version 1.20.3: