diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index 40fa5d9..6205fe1 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -4,17 +4,17 @@ on:
     branches:
       - master
     paths-ignore:
-    - 'README.md'
-    - '.vscode/**'
-    - '.devcontainers/**'
+      - 'README.md'
+      - '.vscode/**'
+      - '.devcontainers/**'
 
   pull_request:
     branches:
       - master
     paths-ignore:
-    - 'README.md'
-    - '.vscode/**'
-    - '.devcontainers/**'
+      - 'README.md'
+      - '.vscode/**'
+      - '.devcontainers/**'
     
 jobs:
   build:
@@ -24,7 +24,7 @@ jobs:
     # Required services    
     services:
       redis:
-        image: redis
+        image: redis:6-alpine
         options: >-
           --health-cmd "redis-cli ping"
           --health-interval 10s
@@ -32,27 +32,24 @@ jobs:
           --health-retries 5
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       
-      - name: Install Python dependencies
+      - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip wheel
-          pip install -r requirements.txt
+          python -m pip install poetry
+          poetry config virtualenvs.create false
+          poetry install
 
       - name: Linting
         run: |
-          # stop the build if there are Python syntax errors or undefined names
           flake8 service tests --count --select=E9,F63,F7,F82 --show-source --statistics
-          # check for omplexity. The GitHub editor is 127 chars wide
           flake8 service tests --count --max-complexity=10 --max-line-length=127 --statistics
-          # Run pylint on the service and tests folders only
           pylint service tests --max-line-length=127
 
-      - name: Run unit tests with green
-        run: green
+      - name: Run unit tests with PyTest
+        run: pytest
         env:
           DATABASE_URI: "redis://redis:6379/0"
-          RETRY_COUNT: 2
 
       - name: Upload code coverage
         uses: codecov/codecov-action@v3.1.4