diff --git a/PKG-INFO b/PKG-INFO
index 953d3cf..9179d39 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: certbot-dns-rfc2136
-Version: 0.31.0
+Version: 0.35.1
 Summary: RFC 2136 DNS Authenticator plugin for Certbot
 Home-page: https://github.com/certbot/certbot
 Author: Certbot Project
diff --git a/certbot_dns_rfc2136/dns_rfc2136.py b/certbot_dns_rfc2136/dns_rfc2136.py
index b8c01cd..2061374 100644
--- a/certbot_dns_rfc2136/dns_rfc2136.py
+++ b/certbot_dns_rfc2136/dns_rfc2136.py
@@ -57,7 +57,7 @@
     def _validate_algorithm(self, credentials):
         algorithm = credentials.conf('algorithm')
         if algorithm:
-            if not self.ALGORITHMS.get(algorithm):
+            if not self.ALGORITHMS.get(algorithm.upper()):
                 raise errors.PluginError("Unknown algorithm: {0}.".format(algorithm))
 
     def _setup_credentials(self):
@@ -220,4 +220,3 @@
         except Exception as e:
             raise errors.PluginError('Encountered error when making query: {0}'
                                      .format(e))
-
diff --git a/certbot_dns_rfc2136/dns_rfc2136_test.py b/certbot_dns_rfc2136/dns_rfc2136_test.py
index 89ce3d9..d800f1e 100644
--- a/certbot_dns_rfc2136/dns_rfc2136_test.py
+++ b/certbot_dns_rfc2136/dns_rfc2136_test.py
@@ -1,6 +1,5 @@
 """Tests for certbot_dns_rfc2136.dns_rfc2136."""
 
-import os
 import unittest
 
 import dns.flags
@@ -9,6 +8,7 @@
 import mock
 
 from certbot import errors
+from certbot.compat import os
 from certbot.plugins import dns_test_common
 from certbot.plugins.dns_test_common import DOMAIN
 from certbot.tests import util as test_util
@@ -64,7 +64,7 @@
 
     def test_valid_algorithm_passes(self):
         config = VALID_CONFIG.copy()
-        config["rfc2136_algorithm"] = "HMAC-SHA512"
+        config["rfc2136_algorithm"] = "HMAC-sha512"
         dns_test_common.write(config, self.config.rfc2136_credentials)
 
         self.auth.perform([self.achall])
@@ -171,7 +171,7 @@
         result = self.rfc2136_client._query_soa(DOMAIN)
 
         query_mock.assert_called_with(mock.ANY, SERVER, port=PORT)
-        self.assertTrue(result == True)
+        self.assertTrue(result)
 
     @mock.patch("dns.query.udp")
     def test_query_soa_not_found(self, query_mock):
@@ -181,7 +181,7 @@
         result = self.rfc2136_client._query_soa(DOMAIN)
 
         query_mock.assert_called_with(mock.ANY, SERVER, port=PORT)
-        self.assertTrue(result == False)
+        self.assertFalse(result)
 
     @mock.patch("dns.query.udp")
     def test_query_soa_wraps_errors(self, query_mock):
diff --git a/certbot_dns_rfc2136.egg-info/PKG-INFO b/certbot_dns_rfc2136.egg-info/PKG-INFO
index 953d3cf..9179d39 100644
--- a/certbot_dns_rfc2136.egg-info/PKG-INFO
+++ b/certbot_dns_rfc2136.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: certbot-dns-rfc2136
-Version: 0.31.0
+Version: 0.35.1
 Summary: RFC 2136 DNS Authenticator plugin for Certbot
 Home-page: https://github.com/certbot/certbot
 Author: Certbot Project
diff --git a/certbot_dns_rfc2136.egg-info/requires.txt b/certbot_dns_rfc2136.egg-info/requires.txt
index c54cdcd..0c8dcb6 100644
--- a/certbot_dns_rfc2136.egg-info/requires.txt
+++ b/certbot_dns_rfc2136.egg-info/requires.txt
@@ -1,5 +1,5 @@
-acme>=0.21.1
-certbot>=0.21.1
+acme>=0.29.0
+certbot>=0.34.0
 dnspython
 mock
 setuptools
diff --git a/setup.py b/setup.py
index 0faa2d4..cc406aa 100644
--- a/setup.py
+++ b/setup.py
@@ -2,13 +2,13 @@
 from setuptools import find_packages
 
 
-version = '0.31.0'
+version = '0.35.1'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
 install_requires = [
-    'acme>=0.21.1',
-    'certbot>=0.21.1',
+    'acme>=0.29.0',
+    'certbot>=0.34.0',
     'dnspython',
     'mock',
     'setuptools',