diff --git a/python/test_requirements.txt b/python/test_requirements.txt
index 19df72d..187f0b1 100644
--- a/python/test_requirements.txt
+++ b/python/test_requirements.txt
@@ -3,3 +3,4 @@ py-evm==0.3.0a20
 pytest==6.0.1
 cic-contracts~=0.3.8
 eth-interface~=0.1.2
+eth-owned~=0.1.2
diff --git a/python/tests/test_erc173.py b/python/tests/test_erc173.py
new file mode 100644
index 0000000..644d382
--- /dev/null
+++ b/python/tests/test_erc173.py
@@ -0,0 +1,21 @@
+# standard imports
+import unittest
+import logging
+
+# external imports
+from cic_contracts import erc165_for
+from eth_owned.unittest import TestERC173
+
+# local imports
+from ge_capped_token.unittest import TestCappedToken
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+
+class TestEthCappedERC173(TestCappedToken, TestERC173):
+    pass
+
+
+if __name__ == '__main__':
+    unittest.main()