diff --git a/tests/test_pkcs1.py b/tests/test_pkcs1.py
index b79eab9..7f9572c 100644
--- a/tests/test_pkcs1.py
+++ b/tests/test_pkcs1.py
@@ -148,7 +148,7 @@ def test_sign_different_key(self):
 
         message = b"je moeder"
         signature = pkcs1.sign(message, self.priv, "SHA-256")
-        self.assertRaises(pkcs1.VerificationError, pkcs1.verify, message, signature, otherpub)
+        self.assertRaises((pkcs1.VerificationError, OverflowError), pkcs1.verify, message, signature, otherpub)
 
     def test_multiple_signings(self):
         """Signing the same message twice should return the same signatures."""