diff --git a/pyproject.toml b/pyproject.toml
index 1ad71ee..4f43d81 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "retrack"
-version = "1.0.1"
+version = "1.1.0"
 description = "A business rules engine"
 authors = ["Gabriel Guarisa <gabrielguarisa@gmail.com>", "Nathalia Trotte <nathaliatrotte@gmail.com>"]
 license = "MIT"
@@ -16,6 +16,7 @@ numpy = "^1.19.5"
 pydantic = "2.4.2"
 networkx = "^2.6.3"
 pandera = "^0.17.2"
+unidecode = "^1.3.7"
 
 [tool.poetry.dev-dependencies]
 pytest = "*"
diff --git a/retrack/engine/parser.py b/retrack/engine/parser.py
index 064de50..0e47045 100644
--- a/retrack/engine/parser.py
+++ b/retrack/engine/parser.py
@@ -6,6 +6,8 @@
 from retrack.utils.registry import Registry
 import json
 
+from unidecode import unidecode
+
 
 class Parser:
     def __init__(
@@ -14,11 +16,15 @@ def __init__(
         component_registry: Registry = nodes.registry(),
         dynamic_registry: Registry = nodes.dynamic_registry(),
         validator_registry: Registry = validators.registry(),
+        raise_if_null_version: bool = False,
+        validate_version: bool = True,
     ):
         self.__graph_data = graph_data
         self._execution_order = None
         self.__components = {}
         self.__edges = None
+        self._raise_if_null_version = raise_if_null_version
+        self._validate_version = validate_version
 
         self._check_input_data(self.graph_data)
 
@@ -213,19 +219,24 @@ def _set_version(self):
         self._version = self.graph_data.get("version", None)
 
         graph_json_content = (
-            json.dumps(self.graph_data["nodes"])
+            json.dumps(self.graph_data["nodes"], ensure_ascii=False)
             .replace(": ", ":")
+            .replace("\\", "")
+            .replace('"', "")
             .replace(", ", ",")
-            .encode("utf-8")
         )
-        calculated_hash = hashlib.sha256(graph_json_content).hexdigest()[:10]
+        graph_json_content = unidecode(graph_json_content, errors="strict")
+        calculated_hash = hashlib.sha256(graph_json_content.encode()).hexdigest()[:10]
 
         if self.version is None:
+            if self._raise_if_null_version:
+                raise ValueError("Missing version")
+
             self._version = f"{calculated_hash}.dynamic"
         else:
             file_version_hash = self.version.split(".")[0]
 
-            if file_version_hash != calculated_hash:
+            if file_version_hash != calculated_hash and self._validate_version:
                 raise ValueError(
                     f"Invalid version. Graph data has changed and the hash is different: {calculated_hash} != {file_version_hash}"
                 )
diff --git a/retrack/engine/request_manager.py b/retrack/engine/request_manager.py
index f3d2222..1007666 100644
--- a/retrack/engine/request_manager.py
+++ b/retrack/engine/request_manager.py
@@ -18,7 +18,7 @@ def __call__(self, value: typing.Any) -> typing.Any:
             else:
                 return self.default
 
-        return str(value) if type(value) != str else value
+        return str(value) if not isinstance(value, str) else value
 
 
 class RequestManager:
diff --git a/tests/resources/rule-of-rules.json b/tests/resources/rule-of-rules.json
index 3c5aabb..23cf5d3 100644
--- a/tests/resources/rule-of-rules.json
+++ b/tests/resources/rule-of-rules.json
@@ -167,5 +167,5 @@
 			"name": "Output"
 		}
 	},
-	"version": "8a3b4cc507.2023-10-25"
+	"version": "108d8ae316.2023-11-24"
 }
\ No newline at end of file
diff --git a/tests/resources/rule-with-version.json b/tests/resources/rule-with-version.json
index 581fb0d..4b8dd93 100644
--- a/tests/resources/rule-with-version.json
+++ b/tests/resources/rule-with-version.json
@@ -164,5 +164,5 @@
 			"name": "Output"
 		}
 	},
-	"version": "93df1616e7.2023-10-25"
+	"version": "16f78d5dd6.2023-11-24"
 }
\ No newline at end of file
diff --git a/tests/resources/to-lowercase.json b/tests/resources/to-lowercase.json
index 225d5e6..7016135 100644
--- a/tests/resources/to-lowercase.json
+++ b/tests/resources/to-lowercase.json
@@ -114,5 +114,5 @@
 			"name": "Output"
 		}
 	},
-	"version": "e7dd59c058.2023-10-25"
+	"version": "b91da10710.2023-11-24"
 }
\ No newline at end of file