diff --git a/javascript/extractor/lib/typescript/src/ast_extractor.ts b/javascript/extractor/lib/typescript/src/ast_extractor.ts
index a39395f12498..ac3b8eb69ed6 100644
--- a/javascript/extractor/lib/typescript/src/ast_extractor.ts
+++ b/javascript/extractor/lib/typescript/src/ast_extractor.ts
@@ -1,4 +1,4 @@
-import * as ts from "./typescript";
+import * as ts from "typescript";
 
 /**
  * Interface that exposes some internal properties we rely on, as well as
diff --git a/javascript/extractor/lib/typescript/src/main.ts b/javascript/extractor/lib/typescript/src/main.ts
index 3d6b10561f3b..7ca31c428123 100644
--- a/javascript/extractor/lib/typescript/src/main.ts
+++ b/javascript/extractor/lib/typescript/src/main.ts
@@ -33,7 +33,7 @@
 
 import * as pathlib from "path";
 import * as readline from "readline";
-import * as ts from "./typescript";
+import * as ts from "typescript";
 import * as ast_extractor from "./ast_extractor";
 
 // Remove limit on stack trace depth.
diff --git a/javascript/extractor/lib/typescript/src/typescript.d.ts b/javascript/extractor/lib/typescript/src/typescript.d.ts
deleted file mode 100644
index 769a318e7249..000000000000
--- a/javascript/extractor/lib/typescript/src/typescript.d.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-import * as ts from "typescript";
-export = ts;
diff --git a/javascript/extractor/lib/typescript/src/typescript.js b/javascript/extractor/lib/typescript/src/typescript.js
deleted file mode 100644
index f469e2e098dd..000000000000
--- a/javascript/extractor/lib/typescript/src/typescript.js
+++ /dev/null
@@ -1,7 +0,0 @@
-let overridePath = process.env['SEMMLE_TYPESCRIPT_HOME'];
-
-if (overridePath != null) {
-  module.exports = require(overridePath);
-} else {
-  module.exports = require('typescript');
-}
diff --git a/javascript/ql/lib/change-notes/2026-10-22-remove-typescript-home.md b/javascript/ql/lib/change-notes/2026-10-22-remove-typescript-home.md
new file mode 100644
index 000000000000..810b9c60ea12
--- /dev/null
+++ b/javascript/ql/lib/change-notes/2026-10-22-remove-typescript-home.md
@@ -0,0 +1,4 @@
+---
+category: breaking
+---
+* The `SEMMLE_TYPESCRIPT_HOME` environment variable is no longer supported. The JavaScript/TypeScript extractor now ignores the environment variable and always uses its bundled TypeScript compiler.