diff --git a/src/AspNetCore.Identity.DocumentDb/Stores/DocumentDbUserStore.cs b/src/AspNetCore.Identity.DocumentDb/Stores/DocumentDbUserStore.cs
index 91920fb..64423d2 100644
--- a/src/AspNetCore.Identity.DocumentDb/Stores/DocumentDbUserStore.cs
+++ b/src/AspNetCore.Identity.DocumentDb/Stores/DocumentDbUserStore.cs
@@ -570,11 +570,6 @@ public Task SetPasswordHashAsync(TUser user, string passwordHash, CancellationTo
                 throw new ArgumentNullException(nameof(user));
             }
 
-            if (passwordHash == null)
-            {
-                throw new ArgumentNullException(nameof(passwordHash));
-            }
-
             user.PasswordHash = passwordHash;
 
             return Task.CompletedTask;