Subject: use the module from the standard library
Forworded: todo, with hybridation

--- a/hvcc/interpreters/pd2hv/HeavyObject.py
+++ b/hvcc/interpreters/pd2hv/HeavyObject.py
@@ -16,7 +16,7 @@
 
 import decimal
 import json
-import importlib_resources
+import importlib.resources
 from typing import Optional, List, Dict, Any, Union, cast
 
 from .Connection import Connection
@@ -29,11 +29,11 @@
 
 class HeavyObject(PdObject):
 
-    heavy_lang_json = importlib_resources.files('hvcc') / 'core/json/heavy.lang.json'
+    heavy_lang_json = importlib.resources.files('hvcc') / 'core/json/heavy.lang.json'
     with open(heavy_lang_json, "r") as f:
         __HEAVY_LANG_OBJS = HeavyLangType(**json.load(f)).root
 
-    heavy_ir_json = importlib_resources.files('hvcc') / 'core/json/heavy.ir.json'
+    heavy_ir_json = importlib.resources.files('hvcc') / 'core/json/heavy.ir.json'
     with open(heavy_ir_json, "r") as f:
         __HEAVY_IR_OBJS = HeavyIRType(**json.load(f)).root
 
--- a/hvcc/types/IR.py
+++ b/hvcc/types/IR.py
@@ -143,9 +143,9 @@
     """ Test object definitions
     """
     import json
-    import importlib_resources
+    import importlib.resources
 
-    heavy_ir_json = importlib_resources.files('hvcc') / 'core/json/heavy.ir.json'
+    heavy_ir_json = importlib.resources.files('hvcc') / 'core/json/heavy.ir.json'
     with open(heavy_ir_json, "r") as f:
         data = json.load(f)
         heavy_ir = HeavyIRType(root=data)
--- a/hvcc/types/Lang.py
+++ b/hvcc/types/Lang.py
@@ -41,9 +41,9 @@
 
 if __name__ == "__main__":
     import json
-    import importlib_resources
+    import importlib.resources
 
-    heavy_lang_json = importlib_resources.files('hvcc') / 'core/json/heavy.lang.json'
+    heavy_lang_json = importlib.resources.files('hvcc') / 'core/json/heavy.lang.json'
     with open(heavy_lang_json, "r") as f:
         data = json.load(f)
         heavy_lang = HeavyLangType(root=data)
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,6 @@
 [tool.poetry.dependencies]
 python = "^3.8.1"
 Jinja2 = ">=2.11"
-importlib-resources = ">=5.1"
 wstd2daisy = ">=0.5.3"
 pydantic = ">=2.9.1"