diff --git a/CHANGELOG.md b/CHANGELOG.md
index c544967..ccdd777 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 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.
 
+<a name="3.1.4"></a>
+## [3.1.4](https://github.com/npm/lifecycle/compare/v3.1.3...v3.1.4) (2019-09-18)
+
+
+### Bug Fixes
+
+* filter functions and undefined out of makeEnv ([10c0c08](https://github.com/npm/lifecycle/commit/10c0c08))
+
+
+
 <a name="3.1.3"></a>
 ## [3.1.3](https://github.com/npm/lifecycle/compare/v3.1.2...v3.1.3) (2019-08-12)
 
diff --git a/package-lock.json b/package-lock.json
index 66fe0f6..7df2276 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "npm-lifecycle",
-  "version": "3.1.3",
+  "version": "3.1.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index b1edb31..cdc6812 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "npm-lifecycle",
-  "version": "3.1.3",
+  "version": "3.1.4",
   "description": "JavaScript package lifecycle hook runner",
   "main": "index.js",
   "scripts": {