diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e7b8e0..25d7c06 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+### [1.6.4](https://www.github.com/yargs/yargs-unparser/compare/v1.6.3...v1.6.4) (2020-10-01)
+
+
+### Bug Fixes
+
+* **security:** upgraded flat to version ^5.0.2 ([9bd7c67](https://www.github.com/yargs/yargs-unparser/commit/9bd7c672e12417319c5d4de79070d9c7cd5107f2))
+
 ### [1.6.3](https://www.github.com/yargs/yargs-unparser/compare/v1.6.2...v1.6.3) (2020-06-17)
 
 
diff --git a/package-lock.json b/package-lock.json
index b063364..70d1d09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "yargs-unparser",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index b71e949..a09e466 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "yargs-unparser",
   "description": "Converts back a yargs argv object to its original array form",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "keywords": [
     "yargs",
     "unparse",