diff --git a/requirements.txt b/requirements.txt
index 5d508d7ee..a3350d2d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
-certifi==2020.4.5.1
+certifi==2020.6.20
 babel==2.7.0
 flask-babel==1.0.0
 flask==1.1.2
-idna==2.9
+idna==2.10
 jinja2==2.11.1
 lxml==4.5.0
 pygments==2.1.3
 pyopenssl==19.1.0
 python-dateutil==2.8.0
 pyyaml==5.3.1
-requests[socks]==2.23.0
+requests[socks]==2.24.0
diff --git a/searx/__init__.py b/searx/__init__.py
index 80a7ffc76..b90cf5358 100644
--- a/searx/__init__.py
+++ b/searx/__init__.py
@@ -15,12 +15,10 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 (C) 2013- by Adam Tauber, <asciimoo@gmail.com>
 '''
 
-import certifi
 import logging
 from os import environ
 from os.path import realpath, dirname, join, abspath, isfile
 from io import open
-from ssl import OPENSSL_VERSION_INFO, OPENSSL_VERSION
 from yaml import safe_load
 
 
@@ -81,13 +79,6 @@ else:
 
 logger = logging.getLogger('searx')
 logger.debug('read configuration from %s', settings_path)
-# Workaround for openssl versions <1.0.2
-# https://github.com/certifi/python-certifi/issues/26
-if OPENSSL_VERSION_INFO[0:3] < (1, 0, 2):
-    if hasattr(certifi, 'old_where'):
-        environ['REQUESTS_CA_BUNDLE'] = certifi.old_where()
-    logger.warning('You are using an old openssl version({0}), please upgrade above 1.0.2!'.format(OPENSSL_VERSION))
-
 logger.info('Initialisation done')
 
 if 'SEARX_SECRET' in environ:
diff --git a/searx/poolrequests.py b/searx/poolrequests.py
index 51b6219c3..e03797ce2 100644
--- a/searx/poolrequests.py
+++ b/searx/poolrequests.py
@@ -1,9 +1,33 @@
-import requests
-
+import sys
+from time import time
 from itertools import cycle
 from threading import RLock, local
+
+import requests
+
 from searx import settings
-from time import time
+from searx import logger
+
+
+logger = logger.getChild('poolrequests')
+
+
+try:
+    import ssl
+    if ssl.OPENSSL_VERSION_INFO[0:3] < (1, 0, 2):
+        # https://github.com/certifi/python-certifi#1024-bit-root-certificates
+        logger.critical('You are using an old openssl version({0}), please upgrade above 1.0.2!'
+                        .format(ssl.OPENSSL_VERSION))
+        sys.exit(1)
+except ImportError:
+    ssl = None
+if not getattr(ssl, "HAS_SNI", False):
+    try:
+        import OpenSSL  # pylint: disable=unused-import
+    except ImportError:
+        logger.critical("ssl doesn't support SNI and the pyopenssl module is not installed.\n"
+                        "Some HTTPS connections will fail")
+        sys.exit(1)
 
 
 class HTTPAdapterWithConnParams(requests.adapters.HTTPAdapter):
diff --git a/searx/webapp.py b/searx/webapp.py
index bba37cce1..2be15ab91 100755
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -78,13 +78,6 @@ from searx.plugins.oa_doi_rewrite import get_doi_resolver
 from searx.preferences import Preferences, ValidationException, LANGUAGE_CODES
 from searx.answerers import answerers
 
-# check if the pyopenssl package is installed.
-# It is needed for SSL connection without trouble, see #298
-try:
-    import OpenSSL.SSL  # NOQA
-except ImportError:
-    logger.critical("The pyopenssl package has to be installed.\n"
-                    "Some HTTPS connections will fail")
 
 # serve pages with HTTP/1.1
 from werkzeug.serving import WSGIRequestHandler