diff --git a/guides/data-policy.mdx b/guides/data-policy.mdx
index 346dff9..23c02f6 100644
--- a/guides/data-policy.mdx
+++ b/guides/data-policy.mdx
@@ -56,7 +56,7 @@ When displaying teaser/free response data, partners must show "Powered by Saturd
 - **Link**: Attribution must link to `saturday.fit` or the subscription `subscribe_url`
 - **Mark**: use the "Powered by Saturday" logo where it fits; appropriately sized plain text is a valid fallback
 
-Teaser responses carry `X-Saturday-Data-Attribution: required`. Every calculation response carries an `attribution` object with the text, logo URL, and link to display; its `required` flag is `true` on teaser responses.
+Teaser responses carry `X-Saturday-Data-Attribution: required`. Every calculation response carries an `attribution` object with the text, logo URL, and link to display; its `required` flag is `true` on every tier.
 
 ### Full tier (required, lighter)
 
diff --git a/guides/nutrition-calculation.mdx b/guides/nutrition-calculation.mdx
index a844682..e4ad8f6 100644
--- a/guides/nutrition-calculation.mdx
+++ b/guides/nutrition-calculation.mdx
@@ -118,7 +118,7 @@ This example shows an exact full-tier response with complete inputs. Teaser resp
     "text": "Powered by Saturday",
     "logo_url": "https://saturday.fit/logo.png",
     "link": "https://saturday.fit",
-    "required": false
+    "required": true
   }
 }
 ```
diff --git a/quickstart.mdx b/quickstart.mdx
index a9a3b4f..4bc254a 100644
--- a/quickstart.mdx
+++ b/quickstart.mdx
@@ -177,7 +177,7 @@ A successful response returns a prescription with safety metadata. The request a
     "text": "Powered by Saturday",
     "logo_url": "https://saturday.fit/logo.png",
     "link": "https://saturday.fit",
-    "required": false
+    "required": true
   }
 }
 ```