diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1ad115..899be94 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.
 
+### [5.1.2](https://github.com/webpack-contrib/terser-webpack-plugin/compare/v5.1.1...v5.1.2) (2021-05-12)
+
+
+### Bug Fixes
+
+* don't crash in non-parallel mode ([#395](https://github.com/webpack-contrib/terser-webpack-plugin/issues/395)) ([a177425](https://github.com/webpack-contrib/terser-webpack-plugin/commit/a1774257f7ccedafa15a58aaeba6186c47daea8a))
+
 ### [5.1.1](https://github.com/webpack-contrib/terser-webpack-plugin/compare/v5.1.0...v5.1.1) (2021-01-09)
 
 
diff --git a/package-lock.json b/package-lock.json
index 1283b74..9b7f7ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "terser-webpack-plugin",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/package.json b/package.json
index 0fe694e..6d5ea78 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "terser-webpack-plugin",
-  "version": "5.1.1",
+  "version": "5.1.2",
   "description": "Terser plugin for webpack",
   "license": "MIT",
   "repository": "webpack-contrib/terser-webpack-plugin",