diff --git a/selfdrive/car/hyundai/values.py b/selfdrive/car/hyundai/values.py
index 49c68fbd26..9126116028 100644
--- a/selfdrive/car/hyundai/values.py
+++ b/selfdrive/car/hyundai/values.py
@@ -349,7 +349,7 @@ FINGERPRINTS = {
 }
 
 
-@functools.cache
+@functools.lru_cache(maxsize=None)
 def parse_platform_code(fw_version: bytes) -> Tuple[Optional[bytes], Optional[bytes]]:
   match = PLATFORM_CODE_PATTERN.search(fw_version)
   code, date = None, None