diff --git a/docs/codeql/reusables/supported-versions-compilers.rst b/docs/codeql/reusables/supported-versions-compilers.rst
index 93b826a94dd..1ac892c01c2 100644
--- a/docs/codeql/reusables/supported-versions-compilers.rst
+++ b/docs/codeql/reusables/supported-versions-compilers.rst
@@ -25,7 +25,7 @@
    Python [8]_,"2.7, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11",Not applicable,``.py``
    Ruby [9]_,"up to 3.2",Not applicable,"``.rb``, ``.erb``, ``.gemspec``, ``Gemfile``"
    Swift [10]_,"Swift 5.4-5.7","Swift compiler","``.swift``"
-   TypeScript [11]_,"2.6-5.0",Standard TypeScript compiler,"``.ts``, ``.tsx``, ``.mts``, ``.cts``"
+   TypeScript [11]_,"2.6-5.1",Standard TypeScript compiler,"``.ts``, ``.tsx``, ``.mts``, ``.cts``"
 
 .. container:: footnote-group
 
diff --git a/javascript/extractor/lib/typescript/package.json b/javascript/extractor/lib/typescript/package.json
index 0c8de4f1bbc..cb053bb0e6f 100644
--- a/javascript/extractor/lib/typescript/package.json
+++ b/javascript/extractor/lib/typescript/package.json
@@ -2,7 +2,7 @@
     "name": "typescript-parser-wrapper",
     "private": true,
     "dependencies": {
-        "typescript": "5.0.2"
+        "typescript": "5.1.1-rc"
     },
     "scripts": {
         "build": "tsc --project tsconfig.json",
diff --git a/javascript/extractor/lib/typescript/src/main.ts b/javascript/extractor/lib/typescript/src/main.ts
index 2e9f26b6953..2594f4e35f5 100644
--- a/javascript/extractor/lib/typescript/src/main.ts
+++ b/javascript/extractor/lib/typescript/src/main.ts
@@ -579,7 +579,6 @@ function handleOpenProjectCommand(command: OpenProjectCommand) {
     // inverse mapping, nor a way to enumerate all known module names. So we discover all
     // modules on the type roots (usually "node_modules/@types" but this is configurable).
     let typeRoots = ts.getEffectiveTypeRoots(config.options, {
-        directoryExists: (path) => ts.sys.directoryExists(path),
         getCurrentDirectory: () => basePath,
     });
 
diff --git a/javascript/extractor/lib/typescript/yarn.lock b/javascript/extractor/lib/typescript/yarn.lock
index 88d32ae6b3a..3b0a9476df6 100644
--- a/javascript/extractor/lib/typescript/yarn.lock
+++ b/javascript/extractor/lib/typescript/yarn.lock
@@ -7,7 +7,7 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-18.15.3.tgz#f0b991c32cfc6a4e7f3399d6cb4b8cf9a0315014"
   integrity sha512-p6ua9zBxz5otCmbpb5D3U4B5Nanw6Pk3PPyX05xnxbB/fRv71N7CPmORg7uAD5P70T0xmx1pzAx/FUfa5X+3cw==
 
-typescript@5.0.2:
-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.0.2.tgz#891e1a90c5189d8506af64b9ef929fca99ba1ee5"
-  integrity sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==
+typescript@5.1.1-rc:
+  version "5.1.1-rc"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.1.1-rc.tgz#7be6e85bb4ad36e07e0125e501eb08ed3a6e3769"
+  integrity sha512-+yHTPe5QCxw5cgN+B81z+k65xTHcwNCRwJN7OGVUe3srPULTZHF7J9QCgrptL7F8mrO7gmsert7XrMksAjutRw==
diff --git a/javascript/extractor/src/com/semmle/js/extractor/Main.java b/javascript/extractor/src/com/semmle/js/extractor/Main.java
index 4f8bb2c1ced..2a188676924 100644
--- a/javascript/extractor/src/com/semmle/js/extractor/Main.java
+++ b/javascript/extractor/src/com/semmle/js/extractor/Main.java
@@ -41,7 +41,7 @@ public class Main {
    * A version identifier that should be updated every time the extractor changes in such a way that
    * it may produce different tuples for the same file under the same {@link ExtractorConfig}.
    */
-  public static final String EXTRACTOR_VERSION = "2023-03-16";
+  public static final String EXTRACTOR_VERSION = "2023-04-19";
 
   public static final Pattern NEWLINE = Pattern.compile("\n");
 
diff --git a/javascript/ql/lib/change-notes/2023-04-19-typescript-5-1.md b/javascript/ql/lib/change-notes/2023-04-19-typescript-5-1.md
new file mode 100644
index 00000000000..7260bd3d389
--- /dev/null
+++ b/javascript/ql/lib/change-notes/2023-04-19-typescript-5-1.md
@@ -0,0 +1,4 @@
+---
+category: majorAnalysis
+---
+* Added support for TypeScript 5.1.
\ No newline at end of file