diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80ac8be6..6d61a175 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+#### 1.6.5 Maintenance Release
+
+- Fix concurrency bug in chain operator (issue #335)
+- Fix flattening login in map operator (issue #314)
+- Fix message inserts for errors thrown in function bodies (issue #297)
+- Limit array size allocatable by range operator to ten million entries (issue #240)
+
 #### 1.6.4 Maintenance Release
 
 - Fix performance regression (PR #292)
diff --git a/package.json b/package.json
index 169314d9..12561fb2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jsonata",
-  "version": "1.6.4",
+  "version": "1.6.5",
   "description": "JSON query and transformation language",
   "module": "jsonata.js",
   "main": "jsonata.js",