diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdd44b39ab13..154efc04189c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 FEATURES:
 
+* **New Data Source** `azurerm_managed_disk` [GH-121]
 * `azurerm_network_interface` now supports import [GH-119]
 
 BUG FIXES: