diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 1f9222f..4ed47f0 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       
     - name: Set up Python 3.8
       uses: actions/setup-python@v2
@@ -73,32 +73,34 @@ jobs:
     continue-on-error: true
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       
-    - name: Setup Conda
-      uses: s-weigand/setup-conda@v1
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
       with:
-        # Whether to activate the conda base env (Default: 'true')
-        activate-conda: true
-        # If conda should be updated before running other commands (Default: 'false')
-        update-conda: true
-        # Python version which should be installed with conda (default: 'Default')
         python-version: 3.8
 
     - name: Install Workflow dependencies
       run: |
         python -m pip install --upgrade pip
         pip install wheel
-    
-    - name: Brew graphviz
+
+    - name: Install graphviz for visualization test
       if: ${{ runner.os == 'macOS' }}
-      run: |
-        brew install graphviz
-        # execute dot
-        dot -V
-        sudo dot -c
+      uses: ts-graphviz/setup-graphviz@v2
+      with:
+        macos-skip-brew-update: 'true' # default false
 
-    - name: install graphviz for visualization test
+    - name: Setup Conda
+      if: ${{ runner.os == 'Windows' }}
+      uses: s-weigand/setup-conda@v1
+      with:
+        # Whether to activate the conda base env (Default: 'true')
+        activate-conda: true
+        # Python version which should be installed with conda (default: 'Default')
+        python-version: 3.8
+
+    - name: Install graphviz via conda
       if: ${{ runner.os == 'Windows' }}
       run: |
         conda install -c anaconda graphviz
@@ -109,7 +111,6 @@ jobs:
         # should give base conda python
         $python=Get-Command python
         $pypath=Split-Path $python.Source -Parent
-
         # Add to PATH, we know pypath is on it
         $dot=[IO.Path]::Combine($pypath, 'Library', 'bin', 'graphviz')
         echo $dot | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
diff --git a/requirements.txt b/requirements.txt
index 1bf1bad..7e53bb8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 graphviz~=0.20
 hypothesis~=6.82.0
-psycopg2~=2.9.6
+psycopg2-binary~=2.9.6
 python-benedict~=0.32.0
 python-benedict[xml]~=0.32.0
 pytest~=7.4.0
diff --git a/setup.py b/setup.py
index 06c437e..fc50a90 100644
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,7 @@ def read_files(files, delim: str = "\n") -> str:
       license='GPLv3',
       packages=['tdvisu'],
       platforms='any',
-      install_requires=['graphviz', 'psycopg2', 'python-benedict', 'python-benedict[xml]', 'PyYAML'],
+      install_requires=['graphviz', 'psycopg2-binary', 'python-benedict', 'python-benedict[xml]', 'PyYAML'],
       extras_require={'test': tests_require},
       classifiers=classifiers,
       keywords='graph visualization dynamic-programming msol-solver')