diff --git a/CHANGELOG.md b/CHANGELOG.md
index f74cd24..6ef2a4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+v9.1.1 (2024-04-25)
+-------------------------
+ * Add reporting of lag as a metric
+
 v9.1.0 (2024-04-15)
 -------------------------
  * Update deps and bump main package to v9