diff --git a/.changeset/split-into-potential-tokens-lookup-table.md b/.changeset/split-into-potential-tokens-lookup-table.md
deleted file mode 100644
index a9b07d0..0000000
--- a/.changeset/split-into-potential-tokens-lookup-table.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-"webpack-sources": patch
----
-
-perf: use lookup table in splitIntoPotentialTokens for faster character classification
-
-Replace multi-comparison chains (4 comparisons in phase 1, 6 in phase 2) with a single Uint8Array bitmask lookup per character. This reduces per-character branching overhead, yielding ~7% improvement on typical source and ~21% on large sources.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f132f6..d44c074 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # webpack-sources
 
+## 3.5.1
+
+### Patch Changes
+
+- perf: use lookup table in splitIntoPotentialTokens for faster character classification (by [@xiaoxiaojx](https://github.com/xiaoxiaojx) in [#240](https://github.com/webpack/webpack-sources/pull/240))
+
+  Replace multi-comparison chains (4 comparisons in phase 1, 6 in phase 2) with a single Uint8Array bitmask lookup per character. This reduces per-character branching overhead, yielding ~7% improvement on typical source and ~21% on large sources.
+
 ## 3.5.0
 
 ### Minor Changes
diff --git a/package.json b/package.json
index 8acf2d9..2503b94 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,11 @@
 {
   "name": "webpack-sources",
-  "version": "3.5.0",
+  "version": "3.5.1",
   "description": "Source code handling classes for webpack",
-  "keywords": ["webpack", "source-map"],
+  "keywords": [
+    "webpack",
+    "source-map"
+  ],
   "homepage": "https://github.com/webpack/webpack-sources#readme",
   "bugs": {
     "url": "https://github.com/webpack/webpack-sources/issues"
@@ -15,7 +18,10 @@
   "author": "Tobias Koppers @sokra",
   "main": "lib/index.js",
   "types": "types.d.ts",
-  "files": ["lib/", "types.d.ts"],
+  "files": [
+    "lib/",
+    "types.d.ts"
+  ],
   "scripts": {
     "lint": "npm run lint:code && npm run lint:types && npm run lint:types-test && npm run lint:special",
     "lint:code": "eslint --cache .",