diff --git a/scripts/_common.sh b/scripts/_common.sh
index 41cd020..046d72f 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,7 +8,7 @@
 pkg_dependencies="acl build-essential python3-dev python3-pip python3-venv git postgresql postgresql-contrib \
 gir1.2-gst-plugins-base-1.0 gir1.2-gstreamer-1.0 gstreamer1.0-plugins-good gstreamer1.0-plugins-ugly lsb-base \
 python3-gst-1.0 python3-tornado debconf python3-pkg-resources python3-pykka python3-requests \
-gstreamer1.0-alsa gstreamer1.0-pulseaudio gstreamer1.0-tools"
+gstreamer1.0-alsa gstreamer1.0-pulseaudio gstreamer1.0-tools libgirepository1.0-dev libcairo2-dev"
 
 #=================================================
 # PERSONAL HELPERS
@@ -28,20 +28,21 @@ myynh_install() {
 	ynh_exec_as $app $final_path/env/bin/pip install --upgrade --no-cache-dir pip
 
 	# to make Gstreamer visible in Python environment
-	$final_path/env/bin/python3 -m pip install vext
-	$final_path/env/bin/python3 -m pip install --no-binary=:all: vext.gi
+#	$final_path/env/bin/python3 -m pip install vext
+#	$final_path/env/bin/python3 -m pip install --no-binary=:all: vext.gi
+	$final_path/env/bin/python3 -m pip install PyGObject
 
 	# install essential packages
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy==$(ynh_app_upstream_version)
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-local==3.2.1
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-MusicBox-Webclient==3.1.0
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-YouTube==3.3
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir mopidy-ytmusic==0.3.0
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-RadioNet==0.2.2
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-Podcast==3.0.0
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-Podcast-iTunes==3.0.0
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-SoundCloud==3.0.1
-	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-MPD==3.1.0
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy #==$(ynh_app_upstream_version)
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-local #==3.2.1
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-MusicBox-Webclient #==3.1.0
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-YouTube #==3.3
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir mopidy-ytmusic #==0.3.0
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-RadioNet #==0.2.2
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-Podcast #==3.0.0
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-Podcast-iTunes #==3.0.0
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-SoundCloud #==3.0.1
+	ynh_exec_as $app $final_path/env/bin/python3 -m pip install --no-cache-dir Mopidy-MPD #==3.1.0
 	)
 }