diff --git a/package.json b/package.json
index 8aad372..35a9fa9 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "url-parse-lax": "^1.0.0"
   },
   "devDependencies": {
-    "ava": "^0.13.0",
+    "ava": "^0.14.0",
     "coveralls": "^2.11.4",
     "get-port": "^2.0.0",
     "into-stream": "^2.0.0",
diff --git a/test/error.js b/test/error.js
index e81cdae..7630e48 100644
--- a/test/error.js
+++ b/test/error.js
@@ -20,10 +20,10 @@ test('properties', async t => {
 		await got(s.url);
 		t.fail('Exception was not thrown');
 	} catch (err) {
-		t.ok(err);
-		t.ok(err.response);
-		t.ok(!err.propertyIsEnumerable('response'));
-		t.ok(!err.hasOwnProperty('code'));
+		t.truthy(err);
+		t.truthy(err.response);
+		t.truthy(!err.propertyIsEnumerable('response'));
+		t.truthy(!err.hasOwnProperty('code'));
 		t.is(err.message, 'Response code 404 (Not Found)');
 		t.is(err.host, `${s.host}:${s.port}`);
 		t.is(err.method, 'GET');
@@ -35,7 +35,7 @@ test('dns message', async t => {
 		await got('.com', {retries: 0});
 		t.fail('Exception was not thrown');
 	} catch (err) {
-		t.ok(err);
+		t.truthy(err);
 		t.regex(err.message, /getaddrinfo ENOTFOUND/);
 		t.is(err.host, '.com');
 		t.is(err.method, 'GET');
diff --git a/test/gzip.js b/test/gzip.js
index 07466c4..f9d6e46 100644
--- a/test/gzip.js
+++ b/test/gzip.js
@@ -49,7 +49,7 @@ test('handles gzip error', async t => {
 });
 
 test('preserve headers property', async t => {
-	t.ok((await got(s.url)).headers);
+	t.truthy((await got(s.url)).headers);
 });
 
 test('do not break HEAD responses', async t => {
diff --git a/test/helpers.js b/test/helpers.js
index b07bf11..778a6db 100644
--- a/test/helpers.js
+++ b/test/helpers.js
@@ -33,7 +33,7 @@ test('promise mode', async t => {
 		await got.get('.com', {retries: 0});
 		t.fail('Exception was not thrown');
 	} catch (err) {
-		t.ok(err);
+		t.truthy(err);
 	}
 });
 
diff --git a/test/http.js b/test/http.js
index b9bdf4e..cb6b075 100644
--- a/test/http.js
+++ b/test/http.js
@@ -53,7 +53,7 @@ test('error with code', async t => {
 
 test('buffer on encoding === null', async t => {
 	const data = (await got(s.url, {encoding: null})).body;
-	t.ok(Buffer.isBuffer(data));
+	t.truthy(Buffer.isBuffer(data));
 });
 
 test('timeout option', async t => {
diff --git a/test/https.js b/test/https.js
index 01945b5..5d818a7 100644
--- a/test/https.js
+++ b/test/https.js
@@ -39,7 +39,7 @@ test.before('setup', async () => {
 });
 
 test('make request to https server without ca', async t => {
-	t.ok((await got(s.url, {rejectUnauthorized: false})).body);
+	t.truthy((await got(s.url, {rejectUnauthorized: false})).body);
 });
 
 test('make request to https server with ca', async t => {
diff --git a/test/json.js b/test/json.js
index 617bc12..5ac0551 100644
--- a/test/json.js
+++ b/test/json.js
@@ -34,7 +34,7 @@ test.before('setup', async () => {
 });
 
 test('parses response', async t => {
-	t.same((await got(s.url, {json: true})).body, {data: 'dog'});
+	t.deepEqual((await got(s.url, {json: true})).body, {data: 'dog'});
 });
 
 test('not parses responses without a body', async t => {
@@ -48,7 +48,7 @@ test('wraps parsing errors', async t => {
 		t.fail('Exception was not thrown');
 	} catch (err) {
 		t.regex(err.message, /Unexpected token/);
-		t.ok(err.message.indexOf(err.hostname) !== -1, err.message);
+		t.truthy(err.message.indexOf(err.hostname) !== -1, err.message);
 		t.is(err.path, '/invalid');
 	}
 });
@@ -58,7 +58,7 @@ test('parses non-200 responses', async t => {
 		await got(`${s.url}/non200`, {json: true});
 		t.fail('Exception was not thrown');
 	} catch (err) {
-		t.same(err.response.body, {data: 'dog'});
+		t.deepEqual(err.response.body, {data: 'dog'});
 	}
 });
 
diff --git a/test/redirects.js b/test/redirects.js
index 65f856d..320850d 100644
--- a/test/redirects.js
+++ b/test/redirects.js
@@ -123,7 +123,7 @@ test('redirect only GET and HEAD requests', async t => {
 });
 
 test('redirects from http to https works', async t => {
-	t.ok((await got(`${http.url}/httpToHttps`, {rejectUnauthorized: false})).body);
+	t.truthy((await got(`${http.url}/httpToHttps`, {rejectUnauthorized: false})).body);
 });
 
 test('redirects works with lowercase method', async t => {
diff --git a/test/retry.js b/test/retry.js
index d8045d9..6d0872c 100644
--- a/test/retry.js
+++ b/test/retry.js
@@ -40,7 +40,7 @@ test('can be disabled with option', async t => {
 		await got(`${s.url}/try-me`, {timeout: 500, retries: 0});
 		t.fail();
 	} catch (err) {
-		t.ok(err);
+		t.truthy(err);
 		t.is(trys, 1);
 	}
 });
@@ -54,18 +54,18 @@ test('falsy value prevents retries', async t => {
 	try {
 		await got(`${s.url}/long`, {timeout: 100, retries: () => 0});
 	} catch (err) {
-		t.ok(err);
+		t.truthy(err);
 	}
 });
 
 test('falsy value prevents retries #2', async t => {
 	try {
 		await got(`${s.url}/long`, {timeout: 100, retries: (iter, err) => {
-			t.ok(err);
+			t.truthy(err);
 			return false;
 		}});
 	} catch (err) {
-		t.ok(err);
+		t.truthy(err);
 	}
 });
 
diff --git a/test/stream.js b/test/stream.js
index b7b9359..530dd59 100644
--- a/test/stream.js
+++ b/test/stream.js
@@ -66,7 +66,7 @@ test.cb('throws on write to stream with body specified', t => {
 test.cb('have request event', t => {
 	got.stream(s.url)
 		.on('request', req => {
-			t.ok(req);
+			t.truthy(req);
 			t.end();
 		});
 });
@@ -95,7 +95,7 @@ test.cb('have error event', t => {
 		.on('error', (err, data, res) => {
 			t.is(err.message, 'Response code 404 (Not Found)');
 			t.is(null, data);
-			t.ok(res);
+			t.truthy(res);
 			t.end();
 		});
 });