diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 152d5d9aabf16..f114c66585342 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -146,9 +146,18 @@ There are three ways to setup an Apache Airflow development environment.
   # From the container
   pip install -e .[devel]
   # Run all the tests with python and mysql through tox
+  pip install tox
   tox -e py35-backend_mysql
   ```
 
+  If you wish to run individual tests inside of docker enviroment you can do as follows:
+
+  ```bash
+    # From the container (with your desired enviroment) with druid hook
+    tox -e py35-backend_mysql -- tests/hooks/test_druid_hook.py
+ ```
+
+
 ### Running unit tests
 
 To run tests locally, once your unit test environment is setup (directly on your
diff --git a/scripts/ci/docker-compose.yml b/scripts/ci/docker-compose.yml
index 4accf119f68f2..101ad9529731e 100644
--- a/scripts/ci/docker-compose.yml
+++ b/scripts/ci/docker-compose.yml
@@ -66,6 +66,7 @@ services:
     init: true
     environment:
       - USER=airflow
+      - ADDITIONAL_PATH=~/.local/bin
       - SLUGIFY_USES_TEXT_UNIDECODE=yes
       - TOX_ENV
       - PYTHON_VERSION
diff --git a/scripts/ci/run-ci.sh b/scripts/ci/run-ci.sh
index 1a65bf1ef6443..f16ab5284dd44 100755
--- a/scripts/ci/run-ci.sh
+++ b/scripts/ci/run-ci.sh
@@ -32,8 +32,8 @@ else
   PIP=pip
 fi
 
-sudo $PIP install --upgrade pip
-sudo $PIP install tox
+sudo -H $PIP install --upgrade pip
+sudo -H $PIP install tox
 
 cd $AIRFLOW_ROOT && $PIP --version && tox --version