diff --git a/debian/install b/debian/install
index 3df76d3..1032039 100644
--- a/debian/install
+++ b/debian/install
@@ -1,6 +1,7 @@
 src/sensorpajen/*.py opt/sensorpajen/src/sensorpajen/
 scripts/approve-sensors.sh opt/sensorpajen/scripts/
 pyproject.toml opt/sensorpajen/
+requirements.txt opt/sensorpajen/
 readme.md usr/share/doc/sensorpajen/
 INSTALL.md usr/share/doc/sensorpajen/
 ROADMAP.md usr/share/doc/sensorpajen/
diff --git a/debian/postinst b/debian/postinst
index bf90997..42c5b1c 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -42,11 +42,19 @@ case "$1" in
             venv/bin/pip install --upgrade pip setuptools wheel
         fi
 
-        # Install Python dependencies from pyproject.toml
+        # Install Python dependencies from requirements.txt
         echo "Installing Python dependencies..."
-        venv/bin/pip install -e . || {
-            echo "Warning: pip install failed. You may need to install dependencies manually."
-        }
+        if [ -f "/opt/sensorpajen/requirements.txt" ]; then
+            venv/bin/pip install -r /opt/sensorpajen/requirements.txt
+        else
+            echo "Warning: requirements.txt not found, installing bluepy and paho-mqtt directly"
+            venv/bin/pip install bluepy paho-mqtt
+        fi
+        
+        if [ $? -ne 0 ]; then
+            echo "Error: Failed to install dependencies"
+            exit 1
+        fi
 
         # Set Bluetooth capabilities on Python executable
         PYTHON_PATH=$(readlink -f /opt/sensorpajen/venv/bin/python3)