diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 87c235d8f..b2ef7c864 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.9', '3.10']
         pyqt-version: [5.12.3, 5.15.9]
     env:
       DISPLAY: ':99.0'
@@ -35,26 +35,35 @@ jobs:
         miniforge-variant: Miniforge3
         miniforge-version: latest
         activate-environment: pydm-env
-    - name: Install python packages
+
+    - name: Install PyDM with Mamba
+      shell: bash -el {0}
+      run: |
+        mamba install -c conda-forge pydm pyqt=${{ matrix.pyqt-version }}
+
+    - name: Install additional Python dependencies with pip
       shell: bash -el {0}
       run: |
+        pip install -r requirements.txt
         if [ "$RUNNER_OS" == "Windows" ]; then
-          mamba install pyqt=${{ matrix.pyqt-version }}
-          mamba install --file requirements.txt --file windows-dev-requirements.txt
+          pip install -r windows-dev-requirements.txt
         else
-          mamba install pyqt=${{ matrix.pyqt-version }} $(cat requirements.txt dev-requirements.txt)
+          pip install -r dev-requirements.txt
         fi
-    - name: Install packages for testing a pyqt app on linux
+
+    - name: Install packages for testing a PyQt app on Linux
       shell: bash -el {0}
       run: |
         if [ "$RUNNER_OS" == "Linux" ]; then
-          sudo apt install xvfb herbstluftwm libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils
+          sudo apt update
+          sudo apt install -y xvfb herbstluftwm libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils
           sudo /sbin/start-stop-daemon --start --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1024x768x24 -ac +extension GLX +render -noreset
           sleep 3
           sudo /sbin/start-stop-daemon --start --pidfile /tmp/custom_herbstluftwm_99.pid --make-pidfile --background --exec /usr/bin/herbstluftwm
           sleep 1
         fi
+
     - name: Test with pytest
       shell: bash -el {0}
       run: |
-        python run_tests.py
+        python run_tests.py
\ No newline at end of file
diff --git a/README.md b/README.md
index f1576750c..92f21f211 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ as the abstraction layer for the Qt Python wrappers (PyQt5/PyQt4/PySide2/PySide)
 **All tests are performed with PyQt5**.
 
 # Prerequisites
-* Python 3.7+
+* Python 3.9+
 * Qt 5.6 or higher
 * qtpy
 * PyQt5 >= 5.7 or any other Qt Python wrapper.
diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index 4a13dbe23..1d5a69b8f 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -14,13 +14,13 @@ build:
 
 requirements:
   host:
-    - python
+    - python >=3.9
     - pip
     - setuptools
     - pyqt =5
     - qtpy
   run:
-    - python
+    - python >=3.9
     - six
     - numpy
     - scipy