diff --git a/scripts/_common.sh b/scripts/_common.sh
index c5d4d5a..aa40270 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -5,7 +5,7 @@
 #=================================================
 
 # dependencies used by the app
-pkg_dependencies="gettext postgresql postgresql-contrib libpq-dev git curl gcc make openssl libssl-dev pkg-config"
+pkg_dependencies="gettext postgresql postgresql-contrib libpq-dev git curl gcc make openssl libssl-dev pkg-config openssl"
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/install b/scripts/install
index 9ea734b..7cc05af 100755
--- a/scripts/install
+++ b/scripts/install
@@ -33,8 +33,6 @@ password=$YNH_APP_ARG_PASSWORD
 instance_name=$YNH_APP_ARG_NAME
 registration=$YNH_APP_ARG_REGISTRATION
 admin_email=$(ynh_user_get_info $admin 'mail')
-secret_key=$(ynh_string_random 43)
-secret_key="${secret_key}="
 
 ### If it's a multi-instance app, meaning it can be installed several times independently
 ### The id of the app as stated in the manifest is available as $YNH_APP_ID
@@ -77,7 +75,6 @@ ynh_app_setting_set $app is_public $is_public
 ynh_app_setting_set $app instance $instance_name
 ynh_app_setting_set $app registration $registration
 ynh_app_setting_set $app admin_email $admin_email
-ynh_app_setting_set $app secret_key $secret_key
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -200,6 +197,9 @@ chown -R "$app":"$app" "/var/log/$app"
 # MODIFY A CONFIG FILE
 #=================================================
 
+secret_key=$(openssl rand -base64 32)
+ynh_app_setting_set $app secret_key $secret_key
+
 # setup application config
 sudo  cp "../conf/.env" "$final_path/$app/.env"
 ynh_replace_string "__DB_NAME__"     "$db_name"    "$final_path/$app/.env"