diff --git a/CHANGELOG.md b/CHANGELOG.md
index 397bf47f4..9ff452d96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,13 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [3.1.21](https://github.com/ScaleLeap/amazon-advertising-api-sdk/compare/v3.1.20...v3.1.21) (2021-07-30)
+
+
+### Bug Fixes
+
+* **deps:** update dependency fp-ts to v2.11.1 ([0f66ec9](https://github.com/ScaleLeap/amazon-advertising-api-sdk/commit/0f66ec9a8870df1164e1e795718fb4db8fc6635f))
+
 ## [3.1.20](https://github.com/ScaleLeap/amazon-advertising-api-sdk/compare/v3.1.19...v3.1.20) (2021-07-30)
 
 
diff --git a/package-lock.json b/package-lock.json
index 49ed44eb1..f4ded440a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@scaleleap/amazon-advertising-api-sdk",
-  "version": "3.1.20",
+  "version": "3.1.21",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index afee771f7..8da5509bb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@scaleleap/amazon-advertising-api-sdk",
-  "version": "3.1.20",
+  "version": "3.1.21",
   "description": "Amazon Advertising API TypeScript and Node.js Unofficial SDK",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",