diff --git a/scripts/_common.sh b/scripts/_common.sh
index be9a70b..beb0f62 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -5,7 +5,7 @@
 #=================================================
 
 # dependencies used by the app
-pkg_dependencies="deb1 deb2"
+pkg_dependencies="postgresql postgresql-contrib openssl g++ ffmpeg redis-server redis-tools mailutils yarn apt-transport-https"
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/install b/scripts/install
index 93fabe8..08255cf 100644
--- a/scripts/install
+++ b/scripts/install
@@ -92,7 +92,7 @@ echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.lis
 ynh_package_update
 
 # install dependencies
-ynh_install_app_dependencies postgresql postgresql-contrib openssl g++ ffmpeg redis-server redis-tools mailutils yarn apt-transport-https
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # CREATE A POSTGRESQL DATABASE
diff --git a/scripts/restore b/scripts/restore
index 13669a8..0763cba 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -103,7 +103,7 @@ echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.lis
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies  postgresql postgresql-contrib openssl g++ ffmpeg redis-server redis-tools mailutils yarn apt-transport-https
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # RESTORE THE POSTGRESQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index 804de72..e4e325e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -117,7 +117,7 @@ echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.lis
 ynh_package_update
 
 # install postgresql, ffmpeg, redis
-ynh_install_app_dependencies postgresql postgresql-contrib openssl g++ ffmpeg redis-server redis-tools mailutils yarn apt-transport-https
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # CHECK THE PATH