diff --git a/scripts/_common.sh b/scripts/_common.sh
index 944a65e..6a48f17 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,6 +4,9 @@
 # COMMON VARIABLES
 #=================================================
 
+# dependencies used by the app
+pkg_dependencies="sqlite3"
+
 #=================================================
 # PERSONAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 983c37e..c29d312 100755
--- a/scripts/install
+++ b/scripts/install
@@ -63,6 +63,13 @@ ynh_script_progression --message="Finding an available port..." --weight=1
 port=$(ynh_find_port --port=8095)
 ynh_app_setting_set --app=$app --key=port --value=$port
 
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=3
+
+ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 96df7cb..d251b71 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -48,6 +48,14 @@ ynh_script_progression --message="Removing logrotate configuration..." --weight=
 # Remove the app-specific logrotate config
 ynh_remove_logrotate
 
+#=================================================
+# REMOVE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Removing dependencies..." --weight=2
+
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
+
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 6e35f2c..3ed09ce 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -62,6 +62,16 @@ chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 chmod +x $final_path/traggo-server
 
+#=================================================
+# SPECIFIC RESTORATION
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Reinstalling dependencies..." --weight=3
+
+# Define and install dependencies
+ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # RESTORE THE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index a458277..a395c5a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -86,6 +86,13 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Upgrading dependencies..." --weight=3
+
+ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================