diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12092ed..20d121c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@
 
 ### ⚠ BREAKING CHANGES
 
-* migrate to microgenerator (#26)
+* migrate to microgenerator (#26). See the [migration guide](https://github.com/googleapis/python-iam/blob/master/UPGRADING.md).
 
 ### Features