diff --git a/acorn/CHANGELOG.md b/acorn/CHANGELOG.md
index b9ef4266a..c404a235c 100644
--- a/acorn/CHANGELOG.md
+++ b/acorn/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 8.12.1 (2024-07-03)
+
+### Bug fixes
+
+Fix a regression that caused Acorn to no longer run on Node versions <8.10.
+
 ## 8.12.0 (2024-06-14)
 
 ### New features
@@ -17,7 +23,7 @@ Mark the `Parser` constructor as protected, not private, so plugins can extend i
 Fix a bug where some invalid `delete` expressions were let through when the operand was parenthesized and `preserveParens` was enabled.
 
 Properly normalize line endings in raw strings of invalid template tokens.
-    
+
 Properly track line numbers for escaped newlines in strings.
 
 Fix a bug that broke line number accounting after a template literal with invalid escape sequences.
diff --git a/acorn/package.json b/acorn/package.json
index be2eba048..355692a30 100644
--- a/acorn/package.json
+++ b/acorn/package.json
@@ -16,7 +16,7 @@
     ],
     "./package.json": "./package.json"
   },
-  "version": "8.12.0",
+  "version": "8.12.1",
   "engines": {
     "node": ">=0.4.0"
   },
diff --git a/acorn/src/index.js b/acorn/src/index.js
index 3c6e1312c..4140f12d2 100644
--- a/acorn/src/index.js
+++ b/acorn/src/index.js
@@ -31,7 +31,7 @@ import {isIdentifierChar, isIdentifierStart} from "./identifier.js"
 import {Token} from "./tokenize.js"
 import {isNewLine, lineBreak, lineBreakG, nonASCIIwhitespace} from "./whitespace.js"
 
-export const version = "8.12.0"
+export const version = "8.12.1"
 export {
   Parser,
   defaultOptions,