diff --git a/.circleci/config.yml b/.circleci/config.yml
index 983e80f6a..3bb277b36 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -41,14 +41,23 @@ commands:
           name: 'Install Poetry'
           command: |
             curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
-            . $HOME/.poetry/env
+            echo "export PATH=$HOME/.poetry/bin:$PATH" >> $BASH_ENV
+            echo $PATH
+            echo `which poetry`
 
 jobs:
   lint-and-unit-tests:
+    shell: /bin/sh -leo pipefail
+    environment:
+      - BASH_ENV: /etc/profile
     docker:
       - image: cloudreach/sceptre-circleci:0.8.0
     steps:
       - install-poetry
+      - run:
+          name: 'Display Path'
+          command: |
+            echo $PATH
       - python/install-packages:
           pkg-manager: poetry
       - run:
@@ -71,11 +80,15 @@ jobs:
             - project
 
   integration-tests:
+    shell: /bin/sh -leo pipefail
+    environment:
+      - BASH_ENV: /etc/profile
     parallelism: 2
     docker:
       - image: cloudreach/sceptre-circleci:0.8.0
         environment:
           AWS_DEFAULT_REGION: eu-west-1
+          BASH_ENV: /etc/profile
     steps:
       - install-poetry
       - python/install-packages: