diff --git a/docker/utils/ports.py b/docker/utils/ports.py
index 57332deee..8f713c720 100644
--- a/docker/utils/ports.py
+++ b/docker/utils/ports.py
@@ -54,6 +54,7 @@ def port_range(start, end, proto, randomly_available_port=False):
 
 
 def split_port(port):
+    port = str(port)
     match = PORT_SPEC.match(port)
     if match is None:
         _raise_invalid_port(port)
diff --git a/docker/version.py b/docker/version.py
index 8f40f467a..7953c904c 100644
--- a/docker/version.py
+++ b/docker/version.py
@@ -1,2 +1,2 @@
-version = "2.4.0"
+version = "2.4.1"
 version_info = tuple([int(d) for d in version.split("-")[0].split(".")])
diff --git a/docs/change-log.md b/docs/change-log.md
index 194f73479..4ccb617da 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -1,6 +1,16 @@
 Change log
 ==========
 
+2.4.1
+-----
+
+[List of PRs / issues for this release](https://github.com/docker/docker-py/milestone/35?closed=1)
+
+### Bugfixes
+
+* Fixed a bug where the `split_port` utility would raise an exception when
+  passed a non-string argument.
+
 2.4.0
 -----
 
diff --git a/tests/unit/utils_test.py b/tests/unit/utils_test.py
index c25881d14..a2d463d71 100644
--- a/tests/unit/utils_test.py
+++ b/tests/unit/utils_test.py
@@ -587,6 +587,9 @@ def test_with_no_container_port(self):
     def test_split_port_empty_string(self):
         self.assertRaises(ValueError, lambda: split_port(""))
 
+    def test_split_port_non_string(self):
+        assert split_port(1243) == (['1243'], None)
+
     def test_build_port_bindings_with_one_port(self):
         port_bindings = build_port_bindings(["127.0.0.1:1000:1000"])
         self.assertEqual(port_bindings["1000"], [("127.0.0.1", "1000")])