diff --git a/requirements.txt b/requirements.txt
index 4222ccc..703c714 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,4 @@ flask_sqlalchemy
 xeger
 pika
 psycopg2-binary
-marshmallow
-flask-serialize
\ No newline at end of file
+marshmallow
\ No newline at end of file
diff --git a/src/resources.py b/src/resources.py
index 1121b8a..e26f6cd 100644
--- a/src/resources.py
+++ b/src/resources.py
@@ -28,8 +28,6 @@ class SampleResource(Resource):
     Sample endpoint
     See: https://swagger.kmlabz.com/?urls.primaryName=Input%20Service
     """
-    samplemetadatas_schema = SampleMetadata(many=True,
-                                            exclude=['id', 'device_id', 'device_date', 'tag', 'timestamp'])
 
     def post(self):
         """
@@ -107,8 +105,6 @@ class SampleParameterResource(Resource):
     Sample endpoint with parameters
     """
 
-    samplemetadata_schema = SampleMetadata(many=False)
-
     def get(self, tag: str):
         """
         Get a specific item
@@ -116,4 +112,4 @@ class SampleParameterResource(Resource):
         :return:
         """
         sample = SampleMetadata.query.filter_by(tag=tag).first_or_404()
-        return self.samplemetadata_schema.dump(sample), 200
+        return sample, 200