diff --git a/.github/workflows/test-readings.yaml b/.github/workflows/test-readings.yaml
index 08e641c..ffca8ed 100644
--- a/.github/workflows/test-readings.yaml
+++ b/.github/workflows/test-readings.yaml
@@ -1,4 +1,4 @@
-name: Node.js CI
+name: Test
 
 on: [push, pull_request]
 
@@ -8,8 +8,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: oven-sh/setup-bun@v2
         with:
-          node-version: 18
-      - run: npm ci
-      - run: npm test
+          bun-version-file: package.json
+      - run: bun install --frozen-lockfile
+      - run: bun test
diff --git a/bun.lockb b/bun.lockb
index 0cbe8e2..4976cef 100644
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index 808437f..80b484a 100644
--- a/package.json
+++ b/package.json
@@ -1,19 +1,15 @@
 {
   "version": "1.4.0",
   "scripts": {
-    "test": "ava",
     "start": "bun run src/index.ts"
   },
   "dependencies": {
     "pinyin-pro": "^3.18.5",
-    "tsimp": "^2.0.11",
     "yomichan-dict-builder": "^1.3.2"
   },
   "type": "module",
   "devDependencies": {
-    "@ava/typescript": "^5.0.0",
-    "@types/bun": "latest",
-    "ava": "^6.0.1"
+    "@types/bun": "1.1.6"
   },
   "name": "wikipedia-yomitan",
   "peerDependencies": {
diff --git a/src/parse/readingParse.test.ts b/src/parse/readingParse.test.ts
index f18c96f..c0fa4b7 100644
--- a/src/parse/readingParse.test.ts
+++ b/src/parse/readingParse.test.ts
@@ -1,4 +1,4 @@
-import test from 'ava';
+import { test, expect } from 'bun:test';
 
 import { parseLine } from './parseLine.js';
 
@@ -113,9 +113,9 @@ const testCases: {
 
 for (const langTestCases of testCases) {
   for (const testCase of langTestCases.cases) {
-    test(`parseLine ${langTestCases.lang}: ${testCase.term}`, (t) => {
+    test(`parseLine ${langTestCases.lang}: ${testCase.term}`, () => {
       const { reading } = parseLine(testCase.line, langTestCases.lang);
-      t.is(reading, testCase.expectedReading);
+      expect(reading).toBe(testCase.expectedReading);
     });
   }
 }