diff -up ./lib/Crypto/SelfTest/PublicKey/test_ECC_25519.py.bak ./lib/Crypto/SelfTest/PublicKey/test_ECC_25519.py
--- ./lib/Crypto/SelfTest/PublicKey/test_ECC_25519.py.bak	2022-11-26 17:22:56.000000000 +0100
+++ ./lib/Crypto/SelfTest/PublicKey/test_ECC_25519.py	2023-01-08 13:45:26.875917918 +0100
@@ -105,13 +105,13 @@ class TestEccPoint_Ed25519(unittest.Test
 
     def test_pai(self):
         pai = EccPoint(0, 1, curve="Ed25519")
-        self.failUnless(pai.is_point_at_infinity())
+        self.assertTrue(pai.is_point_at_infinity())
         self.assertEqual(pai, pai.point_at_infinity())
 
     def test_negate(self):
         negG = -self.pointG
         sum = self.pointG + negG
-        self.failUnless(sum.is_point_at_infinity())
+        self.assertTrue(sum.is_point_at_infinity())
 
     def test_addition(self):
         self.assertEqual(self.pointG + self.pointG2, self.pointG3)
diff -up ./lib/Crypto/SelfTest/PublicKey/test_ECC_448.py.bak ./lib/Crypto/SelfTest/PublicKey/test_ECC_448.py
--- ./lib/Crypto/SelfTest/PublicKey/test_ECC_448.py.bak	2022-11-26 17:22:56.000000000 +0100
+++ ./lib/Crypto/SelfTest/PublicKey/test_ECC_448.py	2023-01-08 13:45:26.875917918 +0100
@@ -105,13 +105,13 @@ class TestEccPoint_Ed448(unittest.TestCa
 
     def test_pai(self):
         pai = EccPoint(0, 1, curve="Ed448")
-        self.failUnless(pai.is_point_at_infinity())
+        self.assertTrue(pai.is_point_at_infinity())
         self.assertEqual(pai, pai.point_at_infinity())
 
     def test_negate(self):
         negG = -self.pointG
         sum = self.pointG + negG
-        self.failUnless(sum.is_point_at_infinity())
+        self.assertTrue(sum.is_point_at_infinity())
 
     def test_addition(self):
         self.assertEqual(self.pointG + self.pointG2, self.pointG3)