diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8eab7053..130563ef5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## v3.3.1
+
+Release date: 2023-02-27
+
+### Description
+
+Patch-relaese with altered base config file so that the basic installation test passes.
+
+### Changed
+
+- The base config file `climada/conf/climada.conf` has an entry for `CONFIG.hazard.test_data`.
+
 ## v3.3.0
 
 Release date: 2023-02-17