diff --git a/.gitignore b/.gitignore
index 7bbc71c..3a6eebc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -86,6 +86,13 @@ celerybeat-schedule
 .venv
 venv/
 ENV/
+share
+include
+bin
+
+# pipenv generated filespip 
+Pipfile
+Pipfile.lock
 
 # Spyder project settings
 .spyderproject
@@ -99,3 +106,6 @@ ENV/
 
 # mypy
 .mypy_cache/
+
+#build packages
+src 
diff --git a/.travis.yml b/.travis.yml
index 4da93f6..96c381d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ python:
   - "3.6-dev"  # 3.6 development branch
   - "3.7-dev"
 install:
-  - pip install -e git+https://github.com/HTTP-APIs/hydrus#egg=hydrus
+  - pip install -e git+https://github.com/HTTP-APIs/hydra-python-core#egg=hydra_python_core
   - pip install -e .
   
 script: python -m unittest discover
diff --git a/hydra_agent/hydra_graph.py b/hydra_agent/hydra_graph.py
index 1d380a0..756c9fb 100644
--- a/hydra_agent/hydra_graph.py
+++ b/hydra_agent/hydra_graph.py
@@ -2,8 +2,7 @@
 from redisgraph import Graph, Node
 import urllib.request
 import json
-from hydrus.hydraspec import doc_maker
-import hydrus
+from hydra_python_core import doc_maker, doc_writer
 from graphviz import Digraph
 from hydra_agent.classes_objects import ClassEndpoints,RequestError
 from hydra_agent.collections_endpoint import CollectionEndpoints
@@ -21,12 +20,12 @@ def get_apistructure(self,entrypoint_node, api_doc):
         for support_property in api_doc.entrypoint.entrypoint.supportedProperty:
             if isinstance(
                     support_property,
-                    hydrus.hydraspec.doc_writer.EntryPointClass):
+                    doc_writer.EntryPointClass):
                 self.class_endpoints[support_property.name] = support_property.id_
 
             if isinstance(
                     support_property,
-                    hydrus.hydraspec.doc_writer.EntryPointCollection):
+                    doc_writer.EntryPointCollection):
                 self.collection_endpoints[support_property.name] = support_property.id_
 
         if len(self.class_endpoints.keys())>0:
diff --git a/hydra_agent/querying_mechanism.py b/hydra_agent/querying_mechanism.py
index 7ebd87d..4e72fb7 100644
--- a/hydra_agent/querying_mechanism.py
+++ b/hydra_agent/querying_mechanism.py
@@ -4,7 +4,7 @@
 from hydra_agent.hydra_graph import InitialGraph
 import urllib.request
 import json
-from hydrus.hydraspec import doc_maker
+from hydra_python_core import doc_maker
 from urllib.error import URLError, HTTPError
 from hydra_agent.collections_endpoint import CollectionEndpoints
 from hydra_agent.classes_objects import ClassEndpoints,RequestError
diff --git a/requirements.txt b/requirements.txt
index 8352a8b..7f0c180 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ rdflib
 rdflib-jsonld
 uritemplate
 httplib2
-redis
+redis==2.10.6
 redisgraph
 graphviz
--e git+https://github.com/HTTP-APIs/hydrus.git#egg=hydrus
+-e git+https://github.com/HTTP-APIs/hydra-python-core.git#egg=hydra_python_core