diff --git a/dist/renamer-0.5.7-py3-none-any.whl b/dist/renamer-0.5.7-py3-none-any.whl
new file mode 100644
index 0000000..7dc216f
Binary files /dev/null and b/dist/renamer-0.5.7-py3-none-any.whl differ
diff --git a/pyproject.toml b/pyproject.toml
index 15b4880..ba9bc74 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "renamer"
-version = "0.5.6"
+version = "0.5.7"
 description = "Terminal-based media file renamer and metadata viewer"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/renamer/decorators/caching.py b/renamer/decorators/caching.py
index ebc330b..f4a4019 100644
--- a/renamer/decorators/caching.py
+++ b/renamer/decorators/caching.py
@@ -31,6 +31,8 @@ def cached_method(ttl_seconds: int = 3600) -> Callable:
             
             # Use instance identifier (file_path for extractors)
             instance_id = getattr(self, 'file_path', str(id(self)))
+            if isinstance(instance_id, Path):
+                instance_id = hashlib.md5(str(instance_id).encode('utf-8')).hexdigest()
             
             # Create hash from args and kwargs (excluding self)
             param_str = json.dumps((args, kwargs), sort_keys=True, default=str)
diff --git a/renamer/extractors/extractor.py b/renamer/extractors/extractor.py
index 3cd14ab..7cf065d 100644
--- a/renamer/extractors/extractor.py
+++ b/renamer/extractors/extractor.py
@@ -5,6 +5,7 @@ from .mediainfo_extractor import MediaInfoExtractor
 from .fileinfo_extractor import FileInfoExtractor
 from .tmdb_extractor import TMDBExtractor
 from .default_extractor import DefaultExtractor
+import hashlib
 
 
 class MediaExtractor:
@@ -13,8 +14,8 @@ class MediaExtractor:
     @classmethod
     def create(cls, file_path: Path, cache=None, ttl_seconds: int = 21600):
         """Factory method that returns cached object if available, else creates new."""
+        cache_key = f"extractor_{hashlib.md5(str(file_path).encode('utf-8')).hexdigest()}"
         if cache:
-            cache_key = f"extractor_{file_path}"
             cached_obj = cache.get_object(cache_key)
             if cached_obj:
                 print(f"Loaded MediaExtractor object from cache for {file_path.name}")
@@ -25,7 +26,6 @@ class MediaExtractor:
         
         # Cache the object
         if cache:
-            cache_key = f"extractor_{file_path}"
             cache.set_object(cache_key, instance, ttl_seconds)
             print(f"Cached MediaExtractor object for {file_path.name}")
         
diff --git a/uv.lock b/uv.lock
index c79b9ac..2e6b689 100644
--- a/uv.lock
+++ b/uv.lock
@@ -342,7 +342,7 @@ wheels = [
 
 [[package]]
 name = "renamer"
-version = "0.5.6"
+version = "0.5.7"
 source = { editable = "." }
 dependencies = [
     { name = "langcodes" },