diff --git a/scripts/install b/scripts/install
index a0fc42a..be886ec 100644
--- a/scripts/install
+++ b/scripts/install
@@ -100,7 +100,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
+ynh_install_app_dependencies postgresql ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # DATABASE SETUP
@@ -144,7 +144,7 @@ ynh_add_nginx_config
 
 
 # Set right permissions for curl install
-chown -R "$app":"$app" "$datadir"
+chown -R ""$app":"$app""$datadir"
 
 # Reload Nginx
 systemctl reload nginx
diff --git a/scripts/restore b/scripts/restore
index 2092119..5a5074f 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -103,7 +103,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # Define and install dependencies
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
+ynh_install_app_dependencies postgresql ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # RESTORE THE PostgreSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index 96d5149..8249a68 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -95,7 +95,7 @@ echo "deb http://httpredir.debian.org/debian jessie-backports main" | tee /etc/a
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies postgresql-9.4 ffmpeg redis-server redis-tools mailutils
+ynh_install_app_dependencies postgresql ffmpeg redis-server redis-tools mailutils
 
 #=================================================
 # CHECK THE PATH