diff --git a/descarteslabs/core/compute/tests/base.py b/descarteslabs/core/compute/tests/base.py
index 373298e3..267f2538 100644
--- a/descarteslabs/core/compute/tests/base.py
+++ b/descarteslabs/core/compute/tests/base.py
@@ -200,3 +200,8 @@ def assert_url_called(self, uri, times=1, json=None, body=None, params=None):
                 msg += "\n\nParams:\n" + "\n".join(calls_with_params)
 
         assert count == times, msg
+
+    # this was removed from python 3.12 unittest.TestCase
+    def assertDictContainsSubset(self, subset, dictionary):
+        for key, value in subset.items():
+            assert key in dictionary and dictionary[key] == value