diff --git a/.github/workflows/python36.yml b/.github/workflows/python36.yml
new file mode 100644
index 0000000..d699210
--- /dev/null
+++ b/.github/workflows/python36.yml
@@ -0,0 +1,28 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python3.6
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.6
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.6
+    - name: Install dependencies
+      run: |
+        python setup.py install
+    - name: Run tests
+      run: |
+        python setup.py test
diff --git a/.github/workflows/python37.yml b/.github/workflows/python37.yml
new file mode 100644
index 0000000..85b5f3a
--- /dev/null
+++ b/.github/workflows/python37.yml
@@ -0,0 +1,28 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python3.7
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.7
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.7
+    - name: Install dependencies
+      run: |
+        python setup.py install
+    - name: Run tests
+      run: |
+        python setup.py test
diff --git a/.github/workflows/python38.yml b/.github/workflows/python38.yml
new file mode 100644
index 0000000..5c2f24a
--- /dev/null
+++ b/.github/workflows/python38.yml
@@ -0,0 +1,28 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python3.8
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        python setup.py install
+    - name: Run tests
+      run: |
+        python setup.py test
diff --git a/.travis.yml b/.travis.yml
index 197185d..384e270 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
 language: python
 
 python:
-- "3.6"
-- "3.7"
 - "3.8"
 
 install:
@@ -30,4 +28,3 @@ deploy:
   local-dir: "docs"
   on:
     branch: master
-    condition: $TRAVIS_PYTHON_VERSION = "3.6"
diff --git a/netnir/__init__.py b/netnir/__init__.py
index 6bee679..2c42bd6 100644
--- a/netnir/__init__.py
+++ b/netnir/__init__.py
@@ -3,4 +3,4 @@
 netnir will create the default config and folders.
 """
 
-__version__ = "0.0.9"
+__version__ = "0.0.10"
diff --git a/netnir/core/inventory.py b/netnir/core/inventory.py
index 2707715..10a06de 100644
--- a/netnir/core/inventory.py
+++ b/netnir/core/inventory.py
@@ -1,19 +1,9 @@
-from netnir.constants import (
-    HOSTVARS,
-    GROUPVARS,
-    TEMPLATES,
-    DOMAIN,
-    NETNIR_USER,
-    NETNIR_PASS,
-)
-from netnir.helpers import device_mapper
 from nornir.core.deserializer.inventory import Inventory
 import os
 import yaml
 
 
-"""dynamic inventory builder class
-"""
+"""dynamic inventory builder class"""
 
 
 class NornirInventory(Inventory):
@@ -31,7 +21,13 @@ def __init__(self, **kwargs):
         )
 
     def nhosts(self):
+        from netnir.helpers import device_mapper
         from netnir.core.credentials import Credentials
+        from netnir.constants import (
+            HOSTVARS,
+            TEMPLATES,
+            DOMAIN,
+        )
 
         """
         load devices from host_vars and load them into the nornir inventory schema
@@ -48,8 +44,8 @@ def nhosts(self):
             )
             data[host] = {
                 "hostname": f"{host}.{domain}" if domain else host,
-                "username": os.environ.get(NETNIR_USER, creds["username"]),
-                "password": os.environ.get(NETNIR_PASS, creds["password"]),
+                "username": creds["username"],
+                "password": creds["password"],
                 "port": host_vars.get("port", 22),
                 "platform": device_mapper(host_vars["os"]),
                 "groups": host_vars.get("groups", list()),
@@ -68,8 +64,8 @@ def nhosts(self):
                 "connection_options": {
                     "netconf": {
                         "hostname": f"{host}.{domain}" if domain else host,
-                        "username": os.environ.get(NETNIR_USER, creds["username"]),
-                        "password": os.environ.get(NETNIR_PASS, creds["password"]),
+                        "username": creds["username"],
+                        "password": creds["password"],
                         "platform": host_vars.get("os"),
                         "port": host_vars.get("port", 830),
                         "extras": {"hostkey_verify": False},
@@ -83,6 +79,8 @@ def ngroups(self):
         """
         load groups from group_vars and load them into the nornir inventory schema
         """
+        from netnir.constants import GROUPVARS
+
         data = dict()
         groups = os.listdir(os.path.expanduser(GROUPVARS))
         if "all" in groups:
@@ -101,6 +99,8 @@ def ndefaults(self):
         """
         load the defaults from group_vars/all and load them into the nornir inventory schema
         """
+        from netnir.constants import GROUPVARS
+
         if os.path.isfile(os.path.expanduser(GROUPVARS) + "/all"):
             default_vars = yaml.load(
                 open(os.path.expanduser(GROUPVARS) + "/all"), Loader=yaml.SafeLoader,