diff --git a/.github/workflows/bun-testing.yml b/.github/workflows/bun-testing.yml
new file mode 100644
index 0000000..0b472d3
--- /dev/null
+++ b/.github/workflows/bun-testing.yml
@@ -0,0 +1,24 @@
+name: Run Bun testing suite
+on:
+  workflow_dispatch:
+  pull_request_target:
+    types: [ opened, synchronize ]
+
+env:
+  NODE_ENV: "test"
+
+jobs:
+  testing:
+    permissions: write-all
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20.10.0'
+      - uses: actions/checkout@master
+        with:
+          fetch-depth: 0
+      - name: Build & Run test suite
+        run: |
+          bun i
+          bun test --coverage
diff --git a/.github/workflows/jest-testing.yml b/.github/workflows/jest-testing.yml
deleted file mode 100644
index 1671cd4..0000000
--- a/.github/workflows/jest-testing.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-name: Run Jest testing suite
-on:
-  workflow_dispatch:
-  pull_request_target:
-    types: [ opened, synchronize ]
-
-env:
-  NODE_ENV: "test"
-
-jobs:
-  testing:
-    permissions: write-all
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/setup-node@v4
-        with:
-          node-version: '20.10.0'
-      - uses: actions/checkout@master
-        with:
-          fetch-depth: 0
-      - name: Build & Run test suite
-        run: |
-          yarn
-          yarn test | tee ./coverage.txt && exit ${PIPESTATUS[0]}
-      - name: Jest Coverage Comment
-        # Ensures this step is run even on previous step failure (e.g. test failed)
-        if: always()
-        uses: MishaKav/jest-coverage-comment@main
-        with:
-          coverage-summary-path: coverage/coverage-summary.json
-          junitxml-path: junit.xml
-          junitxml-title: JUnit
-          coverage-path: ./coverage.txt
diff --git a/bun.lockb b/bun.lockb
index 93d6837..e989cba 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 5d19039..328c5b5 100644
--- a/package.json
+++ b/package.json
@@ -19,8 +19,7 @@
     "prepare": "husky install",
     "deploy": "wrangler deploy",
     "worker": "wrangler dev --port 8787",
-    "proxy": "tsx src/proxy.ts",
-    "test": "jest --setupFiles dotenv/config --coverage"
+    "proxy": "tsx src/proxy.ts"
   },
   "keywords": [
     "typescript",
@@ -46,6 +45,7 @@
     "@cspell/dict-software-terms": "^3.3.17",
     "@cspell/dict-typescript": "^3.1.2",
     "@mswjs/data": "0.16.1",
+    "@types/bun": "1.0.8",
     "@types/jest": "29.5.12",
     "@typescript-eslint/eslint-plugin": "^6.13.1",
     "@typescript-eslint/parser": "^6.13.1",
@@ -82,5 +82,6 @@
     "extends": [
       "@commitlint/config-conventional"
     ]
-  }
+  },
+  "packageManager": "bun@1.0.23"
 }
diff --git a/tests/main.test.ts b/tests/main.test.ts
index 951f063..fa1e1ce 100644
--- a/tests/main.test.ts
+++ b/tests/main.test.ts
@@ -1,6 +1,5 @@
-import { afterAll, afterEach, beforeAll, describe, expect, it, jest } from "@jest/globals";
-jest.mock("@octokit/webhooks", () => ({
-  ...(jest.requireActual("@octokit/webhooks") as object),
+import { afterAll, afterEach, beforeAll, describe, expect, it, jest, mock, spyOn } from "bun:test";
+mock.module("@octokit/webhooks", () => ({
   Webhooks: WebhooksMocked,
 }));
 
@@ -41,13 +40,12 @@ afterEach(() => {
 });
 afterAll(() => {
   server.close();
-  jest.restoreAllMocks();
 });
 
 describe("Worker tests", () => {
   it("Should fail on missing env variables", async () => {
     const req = new Request("http://localhost:8080");
-    const consoleSpy = jest.spyOn(console, "error").mockImplementation(() => jest.fn());
+    const consoleSpy = spyOn(console, "error").mockImplementation(() => jest.fn());
     const res = await worker.fetch(req, {
       WEBHOOK_SECRET: "",
       APP_ID: "",