update changelog for STORM-519
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 360979a..c8687c6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## 0.9.3
+ * STORM-519: add tuple as an input param to HBaseValueMapper 
  * STORM-488: Exit with 254 error code if storm CLI is run with unknown command
  * STORM-506: Do not count bolt acks & fails in total stats
  * STORM-490: fix build under Windows