diff --git a/html5lib/_trie/_base.py b/html5lib/_trie/_base.py
index 6b71975f..a9295a2b 100644
--- a/html5lib/_trie/_base.py
+++ b/html5lib/_trie/_base.py
@@ -1,9 +1,6 @@
 from __future__ import absolute_import, division, unicode_literals
 
-try:
-    from collections.abc import Mapping
-except ImportError:  # Python 2.7
-    from collections import Mapping
+from collections.abc import Mapping
 
 
 class Trie(Mapping):
diff --git a/html5lib/filters/alphabeticalattributes.py b/html5lib/filters/alphabeticalattributes.py
index 5ba926e3..f7789eef 100644
--- a/html5lib/filters/alphabeticalattributes.py
+++ b/html5lib/filters/alphabeticalattributes.py
@@ -2,7 +2,7 @@
 
 from . import base
 
-from collections import OrderedDict
+from collections.abc import OrderedDict
 
 
 def _attr_key(attr):
diff --git a/html5lib/tests/test_alphabeticalattributes.py b/html5lib/tests/test_alphabeticalattributes.py
index 7d5b8e0f..d50cd647 100644
--- a/html5lib/tests/test_alphabeticalattributes.py
+++ b/html5lib/tests/test_alphabeticalattributes.py
@@ -1,6 +1,6 @@
 from __future__ import absolute_import, division, unicode_literals
 
-from collections import OrderedDict
+from collections.abc import OrderedDict
 
 import pytest
 
diff --git a/html5lib/treebuilders/dom.py b/html5lib/treebuilders/dom.py
index d8b53004..d0b8cd2b 100644
--- a/html5lib/treebuilders/dom.py
+++ b/html5lib/treebuilders/dom.py
@@ -1,10 +1,6 @@
 from __future__ import absolute_import, division, unicode_literals
 
-
-try:
-    from collections.abc import MutableMapping
-except ImportError:  # Python 2.7
-    from collections import MutableMapping
+from collections.abc import MutableMapping
 from xml.dom import minidom, Node
 import weakref
 
diff --git a/html5lib/treewalkers/etree.py b/html5lib/treewalkers/etree.py
index d15a7eeb..476c400b 100644
--- a/html5lib/treewalkers/etree.py
+++ b/html5lib/treewalkers/etree.py
@@ -1,6 +1,6 @@
 from __future__ import absolute_import, division, unicode_literals
 
-from collections import OrderedDict
+from collections.abc import OrderedDict
 import re
 
 from six import string_types