diff --git a/src/cache.py b/src/cache.py
index a516ea9..2a6789e 100644
--- a/src/cache.py
+++ b/src/cache.py
@@ -37,6 +37,7 @@ def remove_old_cache(
             logger.debug(f"Removing {key} from cache, ({value})")
             keys_to_remove.append(key)
 
+    del last_updated_copy
     logger.debug(f"Removing {len(keys_to_remove)} keys from cache")
 
     for key in keys_to_remove: