diff --git a/webauthn/helpers/parse_authentication_credential_json.py b/webauthn/helpers/parse_authentication_credential_json.py
index a9ad604..5d5d8b8 100644
--- a/webauthn/helpers/parse_authentication_credential_json.py
+++ b/webauthn/helpers/parse_authentication_credential_json.py
@@ -7,7 +7,7 @@
 
 def parse_authentication_credential_json(json_val: str) -> AuthenticationCredential:
     if PYDANTIC_V2:
-        parsing_method: Callable = AuthenticationCredential.model_validate_json
+        parsing_method: Callable = AuthenticationCredential.model_validate_json  # type: ignore[attr-defined]
     else:  # assuming V1
         parsing_method = AuthenticationCredential.parse_raw
 
diff --git a/webauthn/helpers/parse_registration_credential_json.py b/webauthn/helpers/parse_registration_credential_json.py
index 2c2d12f..11a3c51 100644
--- a/webauthn/helpers/parse_registration_credential_json.py
+++ b/webauthn/helpers/parse_registration_credential_json.py
@@ -7,7 +7,7 @@
 
 def parse_registration_credential_json(json_val: str) -> RegistrationCredential:
     if PYDANTIC_V2:
-        parsing_method: Callable = RegistrationCredential.model_validate_json
+        parsing_method: Callable = RegistrationCredential.model_validate_json  # type: ignore[attr-defined]
     else:  # assuming V1
         parsing_method = RegistrationCredential.parse_raw
 
diff --git a/webauthn/registration/formats/android_safetynet.py b/webauthn/registration/formats/android_safetynet.py
index 8f4f750..5acf807 100644
--- a/webauthn/registration/formats/android_safetynet.py
+++ b/webauthn/registration/formats/android_safetynet.py
@@ -88,8 +88,8 @@ def verify_android_safetynet(
         )
 
     if PYDANTIC_V2:
-        header = SafetyNetJWSHeader.model_validate_json(base64url_to_bytes(jws_parts[0]))
-        payload = SafetyNetJWSPayload.model_validate_json(base64url_to_bytes(jws_parts[1]))
+        header = SafetyNetJWSHeader.model_validate_json(base64url_to_bytes(jws_parts[0]))  # type: ignore[attr-defined]
+        payload = SafetyNetJWSPayload.model_validate_json(base64url_to_bytes(jws_parts[1]))  # type: ignore[attr-defined]
     else:
         header = SafetyNetJWSHeader.parse_raw(base64url_to_bytes(jws_parts[0]))
         payload = SafetyNetJWSPayload.parse_raw(base64url_to_bytes(jws_parts[1]))
diff --git a/webauthn/registration/verify_registration_response.py b/webauthn/registration/verify_registration_response.py
index 1df1ab7..562b884 100644
--- a/webauthn/registration/verify_registration_response.py
+++ b/webauthn/registration/verify_registration_response.py
@@ -203,7 +203,7 @@ def verify_registration_response(
         # A "none" attestation should not contain _anything_ in its attestation
         # statement
         if PYDANTIC_V2:
-            num_att_stmt_fields_set = len(attestation_object.att_stmt.model_fields_set)
+            num_att_stmt_fields_set = len(attestation_object.att_stmt.model_fields_set)  # type: ignore[attr-defined]
         else:
             num_att_stmt_fields_set = len(attestation_object.att_stmt.__fields_set__)