diff --git a/test/http.ts b/test/http.ts
index 0d757cd1b..772e0b544 100644
--- a/test/http.ts
+++ b/test/http.ts
@@ -2,7 +2,7 @@ import process from 'process';
 import {Buffer} from 'buffer';
 import {STATUS_CODES, Agent} from 'http';
 import os from 'os';
-import {isIPv4, isIPv6} from 'net';
+import {isIPv4, isIPv6, isIP} from 'net';
 import test from 'ava';
 import {Handler} from 'express';
 import nock from 'nock';
@@ -305,7 +305,9 @@ test('DNS auto', withServer, async (t, server, got) => {
 		dnsLookupIpVersion: undefined,
 	});
 
-	t.true(isIPv4(response.body));
+	const version = isIP(response.body);
+
+	t.true(version === 4 || version === 6);
 });
 
 test('DNS IPv4', withServer, async (t, server, got) => {
diff --git a/test/https.ts b/test/https.ts
index 0de8f9d06..122e1a5df 100644
--- a/test/https.ts
+++ b/test/https.ts
@@ -414,9 +414,8 @@ test('invalid key passphrase', withHttpsServer(), async (t, server, got) => {
 		},
 	});
 
-	await t.throwsAsync(request, {
-		code: 'ERR_OSSL_EVP_BAD_DECRYPT',
-	});
+	const {code}: NodeJS.ErrnoException = await t.throwsAsync(request);
+	t.true(code === 'ERR_OSSL_BAD_DECRYPT' || code === 'ERR_OSSL_EVP_BAD_DECRYPT');
 });
 
 test('client certificate PFX', withHttpsServer(), async (t, server, got) => {
diff --git a/test/promise.ts b/test/promise.ts
index d0041ca55..da72d98c0 100644
--- a/test/promise.ts
+++ b/test/promise.ts
@@ -26,7 +26,7 @@ test('emits response event as promise', withServer, async (t, server, got) => {
 		t.true(response instanceof IncomingMessage);
 		t.false(response.readable);
 		t.is(response.statusCode, 200);
-		t.is(response.ip, '127.0.0.1');
+		t.true(response.ip === '127.0.0.1' || response.ip === '::1');
 	});
 });
 
diff --git a/test/stream.ts b/test/stream.ts
index bacf042ad..782cda54d 100644
--- a/test/stream.ts
+++ b/test/stream.ts
@@ -354,7 +354,7 @@ test('works with pipeline', async t => {
 		got.stream.put('http://localhost:7777'),
 	), {
 		instanceOf: RequestError,
-		message: 'connect ECONNREFUSED 127.0.0.1:7777',
+		message: /^connect ECONNREFUSED (127\.0\.0\.1|::1):7777$/,
 	});
 });