diff --git a/rasgoql/CHANGELOG.md b/rasgoql/CHANGELOG.md
index a68de57..a8047f1 100644
--- a/rasgoql/CHANGELOG.md
+++ b/rasgoql/CHANGELOG.md
@@ -118,6 +118,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Fixed a postgres bug
 
+## [1.6.3] - 2022-06-27
+### Added
+- Added a jinja date macro
+
+## [1.6.4] - 2022-07-05
+### Changed
+- Changed default behavior of to_dbt function. Instead of always appending model details to the schema.yml file (which creates duplicate entries for existing models), rql will now check if a model entry already exists in the file and overwrite it. If the model does not exist, it will be appended.
+
+
 [1.0.0]: https://pypi.org/project/rasgoql/1.0.0/
 [1.0.1]: https://pypi.org/project/rasgoql/1.0.1/
 [1.0.2]: https://pypi.org/project/rasgoql/1.0.2/
@@ -137,3 +146,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [1.6.0]: https://pypi.org/project/rasgoql/1.6.0/
 [1.6.1]: https://pypi.org/project/rasgoql/1.6.1/
 [1.6.2]: https://pypi.org/project/rasgoql/1.6.2/
+[1.6.3]: https://pypi.org/project/rasgoql/1.6.3/
+[1.6.4]: https://pypi.org/project/rasgoql/1.6.4/
diff --git a/rasgoql/rasgoql/utils/dbt.py b/rasgoql/rasgoql/utils/dbt.py
index 5f3200c..12cd1c9 100644
--- a/rasgoql/rasgoql/utils/dbt.py
+++ b/rasgoql/rasgoql/utils/dbt.py
@@ -134,16 +134,25 @@ def save_schema_file(
     Writes a table def to a dbt schema file
     """
     filepath = os.path.join(output_directory, 'schema.yml')
-    columns_list = []
-    for row in schema:
-        columns_list.append({"name:": row[0]})
-    model_dict = {"name": model_name, "columns": columns_list}
-    if config_args:
-        model_dict.update({"config": config_args})
-    if not os.path.exists(filepath):
-        schema_definition = {"version": 2, "models": [model_dict]}
+    existing_schema = None
+    if os.path.exists(filepath):
+        with open(filepath, "r") as _file:
+            existing_schema = yaml.safe_load(_file)
+    schema_definition = existing_schema or {"version": 2, "models": []}
+
+    columns_list = [{"name:": row[0]} for row in schema]
+    for mod in schema_definition["models"]:
+        if mod.get("name") == model_name:
+            mod["columns"] = columns_list
+            if config_args:
+                mod["config"] = config_args
+            break
     else:
-        schema_definition = [model_dict]
-    with open(filepath, "a") as _file:
+        model_dict = {"name": model_name, "columns": columns_list}
+        if config_args:
+            model_dict.update({"config": config_args})
+        schema_definition["models"].append(model_dict)
+
+    with open(filepath, "w") as _file:
         yaml.dump(data=schema_definition, Dumper=yaml.SafeDumper, stream=_file, sort_keys=False)
     return filepath
diff --git a/rasgoql/rasgoql/version.py b/rasgoql/rasgoql/version.py
index 64085bd..f1722a4 100644
--- a/rasgoql/rasgoql/version.py
+++ b/rasgoql/rasgoql/version.py
@@ -1,4 +1,4 @@
 """
 Package version for pypi
 """
-__version__ = '1.6.3'
+__version__ = '1.6.4'