diff --git a/manifest.json b/manifest.json
index 410265c..f4d0424 100755
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Federated blogging application",
         "fr": "Une application de blogging fédérée."
     },
-    "version": "0.2.0~ynh3",
+    "version": "0.2.0~ynh4",
     "url": "https://baptiste.gelez.xyz/",
     "license": "AGPL-3.0-only",
     "maintainer": [
diff --git a/scripts/install b/scripts/install
index 63262ab..740ccc5 100755
--- a/scripts/install
+++ b/scripts/install
@@ -32,7 +32,7 @@ password=$YNH_APP_ARG_PASSWORD
 instance_name=$YNH_APP_ARG_NAME
 registration=$YNH_APP_ARG_REGISTRATION
 admin_email=$(ynh_user_get_info $admin 'mail')
-secret_key=$(openssl rand -base64 32)
+secret_key=$(ynh_string_random 32 | base64)
 
 app=$YNH_APP_INSTANCE_NAME