diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 780b0ab6..866552ef 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -57,14 +57,15 @@ jobs:
           #sudo apt-get -y install python${F2B_PY/2/}-systemd || echo 'systemd not available'
           sudo apt-get -y install libsystemd-dev || echo 'systemd dependencies seems to be unavailable'
           python -m pip install systemd-python || echo 'systemd not available'
-          #readline if available as module:
+          # readline if available as module:
           python -c 'import readline' 2> /dev/null || python -m pip install readline || echo 'readline not available'
           # asyncore/asynchat:
           if dpkg --compare-versions "$F2B_PYV" ge 3.12; then
             #sudo apt-get -y install python${F2B_PY/2/}-setuptools || echo 'setuptools not unavailable'
             python -m pip install setuptools || echo "can't install setuptools"
-            python -m pip install pyasynchat || echo "can't install pyasynchat";
-            python -m pip install pyasyncore || echo "can't install pyasyncore";
+            # don't install async* modules, we need to cover bundled-in libraries:
+            #python -m pip install pyasynchat || echo "can't install pyasynchat";
+            #python -m pip install pyasyncore || echo "can't install pyasyncore";
           fi
 
       - name: Before scripts