diff --git a/ipapy/ipastring.py b/ipapy/ipastring.py
index b244dae..7f90b92 100644
--- a/ipapy/ipastring.py
+++ b/ipapy/ipastring.py
@@ -7,7 +7,7 @@
 
 from __future__ import absolute_import
 from __future__ import print_function
-from collections import MutableSequence
+from collections.abc import MutableSequence
 
 from ipapy import UNICODE_TO_IPA
 from ipapy import is_valid_ipa
diff --git a/ipapy/mapper.py b/ipapy/mapper.py
index 261a725..431615d 100644
--- a/ipapy/mapper.py
+++ b/ipapy/mapper.py
@@ -7,7 +7,7 @@
 
 from __future__ import absolute_import
 from __future__ import print_function
-from collections import MutableMapping
+from collections.abc import MutableMapping
 
 from ipapy import split_using_dictionary
 from ipapy.compatibility import is_unicode_string