diff --git a/src-tauri/src/commands/profile_commands.rs b/src-tauri/src/commands/profile_commands.rs
index 28e8507..fb9a0de 100644
--- a/src-tauri/src/commands/profile_commands.rs
+++ b/src-tauri/src/commands/profile_commands.rs
@@ -191,9 +191,10 @@ pub fn verify_pin(pin: String, stored_hash: String) -> Result<VerifyPinResult, S
     let valid: bool = result.as_slice().ct_eq(&expected_hash).into();
 
     if valid {
-        // Re-hash with Argon2id so this legacy PIN is upgraded
-        let new_hash = hash_pin(pin)?;
-        Ok(VerifyPinResult { valid: true, rehashed: Some(new_hash) })
+        // Re-hash with Argon2id so this legacy PIN is upgraded.
+        // If rehash fails, still allow login — don't block the user.
+        let rehashed = hash_pin(pin).ok();
+        Ok(VerifyPinResult { valid: true, rehashed })
     } else {
         Ok(VerifyPinResult { valid: false, rehashed: None })
     }