diff --git a/selectors2.py b/selectors2.py
index 1625a30..c4a1231 100644
--- a/selectors2.py
+++ b/selectors2.py
@@ -22,7 +22,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from collections import namedtuple, Mapping
+from collections import namedtuple
+from collections.abc import Mapping
 import errno
 import math
 import platform