diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5cbf458c..2e0f3192 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.15.3 / 2018-11-09
+
+* [BUGFIX] Fix alert merging supporting both empty and set EndsAt property for firing alerts send by Prometheus (#1611)
+
 ## 0.15.2 / 2018-08-14
 
 * [ENHANCEMENT] [amtool] Add support for stdin to check-config (#1431)
diff --git a/VERSION b/VERSION
index 4312e0d0..1985d914 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.15.2
+0.15.3