diff --git a/test/test_crypto.py b/test/test_crypto.py
index 628900f..7f2296d 100644
--- a/test/test_crypto.py
+++ b/test/test_crypto.py
@@ -236,15 +236,11 @@ class TestCredentials(NativeResourceTest):
 
     def test_rsa_signing_roundtrip(self):
         param_list = [RSASignatureAlgorithm.PKCS1_5_SHA256,
-                      RSASignatureAlgorithm.PSS_SHA256,
-                      RSASignatureAlgorithm.PKCS1_5_SHA1]
+                      RSASignatureAlgorithm.PSS_SHA256]
 
         for p in param_list:
             with self.subTest(msg="RSA Signing Roundtrip using algo p", p=p):
-                if (p == RSASignatureAlgorithm.PKCS1_5_SHA1):
-                    h = Hash.sha1_new()
-                else:
-                    h = Hash.sha256_new()
+                h = Hash.sha256_new()
                 h.update(b'totally original test string')
                 digest = h.digest()
 
@@ -257,15 +253,11 @@ class TestCredentials(NativeResourceTest):
 
     def test_rsa_signing_roundtrip_pkcs8(self):
         param_list = [RSASignatureAlgorithm.PKCS1_5_SHA256,
-                      RSASignatureAlgorithm.PSS_SHA256,
-                      RSASignatureAlgorithm.PKCS1_5_SHA1]
+                      RSASignatureAlgorithm.PSS_SHA256]
 
         for p in param_list:
             with self.subTest(msg="RSA Signing Roundtrip using algo p", p=p):
-                if (p == RSASignatureAlgorithm.PKCS1_5_SHA1):
-                    h = Hash.sha1_new()
-                else:
-                    h = Hash.sha256_new()
+                h = Hash.sha256_new()
                 h.update(b'totally original test string')
                 digest = h.digest()
 
@@ -275,15 +267,11 @@ class TestCredentials(NativeResourceTest):
 
     def test_rsa_signing_roundtrip_der(self):
         param_list = [RSASignatureAlgorithm.PKCS1_5_SHA256,
-                      RSASignatureAlgorithm.PSS_SHA256,
-                      RSASignatureAlgorithm.PKCS1_5_SHA1]
+                      RSASignatureAlgorithm.PSS_SHA256]
 
         for p in param_list:
             with self.subTest(msg="RSA Signing Roundtrip using algo p", p=p):
-                if (p == RSASignatureAlgorithm.PKCS1_5_SHA1):
-                    h = Hash.sha1_new()
-                else:
-                    h = Hash.sha256_new()
+                h = Hash.sha256_new()
                 h.update(b'totally original test string')
                 digest = h.digest()