diff --git a/scripts/_common.sh b/scripts/_common.sh
index 8d785a2..8296088 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -6,7 +6,7 @@
 
 # dependencies used by the app
 # HACK zlib1g-dev libjpeg-dev (libwebp-dev optional but necessary for stickers) are necessary to compile / install pillow
-pkg_dependencies="postgresql python3 zlib1g-dev libjpeg-dev libwebp-dev python3-venv libpq-dev"
+pkg_dependencies="postgresql python3 zlib1g-dev libjpeg-dev libwebp-dev python3-venv libpq-dev libffi-dev"
 pkg_dependencies_e2be="libolm-dev"
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 081a00d..b9e9bd3 100755
--- a/scripts/install
+++ b/scripts/install
@@ -199,7 +199,7 @@ mkdir -p /var/log/$app
 # Configure Mautrix-Bridge
 python3 -m venv $final_path
 export HOME=$final_path # HACK see https://github.com/mautrix/telegram/issues/661
-$final_path/bin/pip3 install --upgrade setuptools wheel # HACK fixes "error: invalid command 'bdist_wheel'"
+$final_path/bin/pip3 install --upgrade pip setuptools wheel
 $final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[postgres,speedups,qr_login] # metrics,hq_thumbnails,e2be
 
 if [ $encryption -eq 1 ]; then
diff --git a/scripts/upgrade b/scripts/upgrade
index fc40a5d..138f53a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -122,8 +122,9 @@ ynh_system_user_create --username=$mautrix_bridge_user
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]; then
   ynh_script_progression --message="Upgrading python packages..." --weight=1
-  export HOME=$final_path # HACK see https://github.com/mautrix/telegram/issues/661
-  $final_path/bin/pip3 install --upgrade setuptools wheel # HACK fixes "error: invalid command 'bdist_wheel'"
+  python3 -m venv $final_path
+  export HOME=$final_path
+  $final_path/bin/pip3 install --upgrade pip setuptools wheel
   $final_path/bin/pip3 install --upgrade $final_path/src/mautrix-telegram.tar.gz[postgres,speedups,qr_login] #,hq_thumbnails
 
   if [ $encryption -eq 1 ]; then