diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c0ed00..21e0716 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## NOT RELEASED
 
+## 1.5.1
+
 ### Changed
 
 - Allow passing explicit null values for optional fields of input objects