diff --git a/tests/http/test_10_proxy.py b/tests/http/test_10_proxy.py
index a53ab0c5e3..dcc454e0d2 100644
--- a/tests/http/test_10_proxy.py
+++ b/tests/http/test_10_proxy.py
@@ -291,7 +291,7 @@ class TestProxy:
         x2_args = r1.args[1:]
         x2_args.append('--next')
         x2_args.extend(proxy_args)
-        x2_args.extend(['--proxy-tls13-ciphers', 'TLS_AES_128_GCM_SHA256'])
+        x2_args.extend(['--proxy-tls13-ciphers', 'TLS_AES_256_GCM_SHA384'])
         r2 = curl.http_download(urls=[url], alpn_proto='http/1.1', with_stats=True,
                                extra_args=x2_args)
         r2.check_response(count=2, http_status=200)
@@ -317,7 +317,7 @@ class TestProxy:
         x2_args = r1.args[1:]
         x2_args.append('--next')
         x2_args.extend(proxy_args)
-        x2_args.extend(['--proxy-tls13-ciphers', 'TLS_AES_128_GCM_SHA256'])
+        x2_args.extend(['--proxy-tls13-ciphers', 'TLS_AES_256_GCM_SHA384'])
         r2 = curl.http_download(urls=[url], alpn_proto='http/1.1', with_stats=True,
                                extra_args=x2_args)
         r2.check_response(count=2, http_status=200)
@@ -343,7 +343,7 @@ class TestProxy:
         x2_args = r1.args[1:]
         x2_args.append('--next')
         x2_args.extend(proxy_args)
-        x2_args.extend(['--tls13-ciphers', 'TLS_AES_128_GCM_SHA256'])
+        x2_args.extend(['--tls13-ciphers', 'TLS_AES_256_GCM_SHA384'])
         r2 = curl.http_download(urls=[url], alpn_proto='http/1.1', with_stats=True,
                                extra_args=x2_args)
         r2.check_response(count=2, http_status=200)
diff --git a/tests/http/test_17_ssl_use.py b/tests/http/test_17_ssl_use.py
index 2d122d5012..32d45980af 100644
--- a/tests/http/test_17_ssl_use.py
+++ b/tests/http/test_17_ssl_use.py
@@ -44,7 +44,13 @@ class TestSSLUse:
     def _class_scope(self, env, httpd, nghttpx):
         if env.have_h3():
             nghttpx.start_if_needed()
-        httpd.clear_extra_configs()
+        httpd.set_extra_config('base', [
+            f'SSLCipherSuite SSL'\
+            f' ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256'\
+            f':ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305',
+            f'SSLCipherSuite TLSv1.3'\
+            f' TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256',
+        ])
         httpd.reload()
 
     def test_17_01_sslinfo_plain(self, env: Env, httpd, nghttpx, repeat):
diff --git a/tests/http/testenv/httpd.py b/tests/http/testenv/httpd.py
index 4771ea3606..7b6cd6618d 100644
--- a/tests/http/testenv/httpd.py
+++ b/tests/http/testenv/httpd.py
@@ -257,13 +257,6 @@ class Httpd:
                 f'Listen {self.env.proxys_port}',
                 f'TypesConfig "{self._conf_dir}/mime.types',
                 f'SSLSessionCache "shmcb:ssl_gcache_data(32000)"',
-                (f'SSLCipherSuite SSL'
-                 f' ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256'
-                 f':ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305'
-                ),
-                (f'SSLCipherSuite TLSv1.3'
-                 f' TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256'
-                ),
             ]
             if 'base' in self._extra_configs:
                 conf.extend(self._extra_configs['base'])