1diff --git a/selectors2.py b/selectors2.py
2index 1625a30..c4a1231 100644
3--- a/selectors2.py
4+++ b/selectors2.py
5@@ -22,7 +22,8 @@
6 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
7 # SOFTWARE.
8
9-from collections import namedtuple, Mapping
10+from collections import namedtuple
11+from collections.abc import Mapping
12 import errno
13 import math
14 import platform