From 8d8f02a2d6052144167b192de292dc0c22eda1b7 Mon Sep 17 00:00:00 2001
From: Mariusz Peplinski <mariusz.peplinski@elfsquad.io>
Date: Tue, 25 Aug 2026 13:49:18 +0200
Subject: [PATCH] fix(ci): bump TypeScript to 5.x and the jest toolchain to 29
 so the build compiles again

The Build workflow runs `npm install` (package-lock.json is gitignored), so every
run re-resolves transitive dependencies from scratch. `@types/node` has since
floated to 26.x, whose .d.ts files use syntax TypeScript 4.9 cannot parse, and
ts-loader fails with 50 TS1005/TS1109/TS1128 errors in @types/node/ffi.d.ts.

Bumping typescript to ^5.9.3 fixes it, which in turn requires jest/ts-jest/@types/jest
29 because ts-jest 27 peer-caps typescript at <5.0.
---
 jest.config.js | 2 +-
 package.json   | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/jest.config.js b/jest.config.js
index b182d4d..15cdba1 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -1,4 +1,4 @@
-/** @type {import('@ts-jest/dist/types').InitialOptionsTsJest} */
+/** @type {import('ts-jest').JestConfigWithTsJest} */
 module.exports = {
   preset: "ts-jest",
   testEnvironment: "node",
diff --git a/package.json b/package.json
index 46bafee..8a41833 100644
--- a/package.json
+++ b/package.json
@@ -32,15 +32,15 @@
   },
   "devDependencies": {
     "@types/fetch-mock": "7.3.5",
-    "@types/jest": "27.4.1",
+    "@types/jest": "^29.5.14",
     "fetch-mock": "^9.11.0",
-    "jest": "^27.1.4",
+    "jest": "^29.7.0",
     "node-fetch": "^2.6.1",
     "nyc": "^15.1.0",
-    "ts-jest": "27.1.4",
+    "ts-jest": "^29.4.7",
     "ts-loader": "^9.2.5",
     "ts-node": "^10.1.0",
-    "typescript": "^4.3.5",
+    "typescript": "^5.9.3",
     "webpack": "^5.50.0",
     "webpack-cli": "^4.7.2"
   }