diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b8c45e..10b4a7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## 9.1.1
+
+## Fixes
+
+- Fix the use of Elasticsearch and OpenSearch API keys (PR #660 fixes issue #653)
+
+## Changes
+
+- Drop support for Python 3.9 (PR #661)
+
 ## 9.1.0
 
 ## Enhancements
diff --git a/parsedmarc/constants.py b/parsedmarc/constants.py
index 1fff6eb..9a2e506 100644
--- a/parsedmarc/constants.py
+++ b/parsedmarc/constants.py
@@ -1,3 +1,3 @@
-__version__ = "9.1.0"
+__version__ = "9.1.1"
 
 USER_AGENT = f"parsedmarc/{__version__}"