diff --git a/scripts/install b/scripts/install
index 154bba4..7479967 100644
--- a/scripts/install
+++ b/scripts/install
@@ -36,8 +36,8 @@ ynh_script_progression --message="Building Movim..."
 # Install composer
 ynh_install_composer
 
-ynh_exec_warn_less ynh_exec_as "$app" ynh_composer_exec --commands="install"
-ynh_exec_warn_less ynh_exec_as "$app" ynh_composer_exec --commands="movim:migrate"
+COMPOSER_ALLOW_SUPERUSER=1 "$app" ynh_composer_exec --commands="install"
+COMPOSER_ALLOW_SUPERUSER=1 "$app" ynh_composer_exec --commands="movim:migrate"
 
 #=================================================
 # SYSTEM CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 60f9707..0433992 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -42,9 +42,9 @@ ynh_script_progression --message="Building Movim..."
 
 ynh_exec_warn_less ynh_install_composer
 
-ynh_exec_warn_less ynh_composer_exec --commands="config --global discard-changes true --quiet"
-ynh_exec_warn_less ynh_composer_exec --commands="update --no-interaction --quiet"
-ynh_exec_warn_less ynh_composer_exec --commands="movim:migrate --quiet"
+ynh_exec_warn_less COMPOSER_ALLOW_SUPERUSER=1 ynh_composer_exec --commands="config --global discard-changes true --quiet"
+ynh_exec_warn_less COMPOSER_ALLOW_SUPERUSER=1 ynh_composer_exec --commands="update --no-interaction --quiet"
+ynh_exec_warn_less COMPOSER_ALLOW_SUPERUSER=1 ynh_composer_exec --commands="movim:migrate --quiet"
 
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS