diff --git a/p/insa/index.js b/p/insa/index.js
index e86e9cf2..05e57119 100644
--- a/p/insa/index.js
+++ b/p/insa/index.js
@@ -10,7 +10,7 @@ const transformReqBody = (ctx, body) => {
 		name: 'nasaPROD',
 		os: 'iPhone OS 11.2.5'
 	}
-	body.ver = '1.21'
+	body.ver = '1.18'
 	body.auth = {type: 'AID', aid: "nasa-apps"}
 	body.lang = 'en' // todo: `de`?