diff --git a/tests/core/middleware/test_name_to_address_middleware.py b/tests/core/middleware/test_name_to_address_middleware.py
index b6e4408893..6e9e964852 100644
--- a/tests/core/middleware/test_name_to_address_middleware.py
+++ b/tests/core/middleware/test_name_to_address_middleware.py
@@ -52,5 +52,5 @@ def test_fail_name_resolver(w3):
         'net_version': '2',
     })
     w3.middleware_stack.inject(return_chain_on_mainnet, layer=0)
-    with pytest.raises(InvalidAddress, match='.*ethereum\.eth.*'):
+    with pytest.raises(InvalidAddress, match=r'.*ethereum\.eth.*'):
         w3.eth.getBalance("ethereum.eth")
diff --git a/web3/_utils/hypothesis.py b/web3/_utils/hypothesis.py
index 920c94d8a0..88ee8d1f50 100644
--- a/web3/_utils/hypothesis.py
+++ b/web3/_utils/hypothesis.py
@@ -4,4 +4,4 @@
 
 
 def hexstr_strategy():
-    return st.from_regex('\A(0[xX])?[0-9a-fA-F]*\Z')
+    return st.from_regex(r'\A(0[xX])?[0-9a-fA-F]*\Z')