diff --git a/docs/02-app/02-api-reference/04-functions/unstable_cache.mdx b/docs/02-app/02-api-reference/04-functions/unstable_cache.mdx
index 9fb06265647388..5fce7c14a681c7 100644
--- a/docs/02-app/02-api-reference/04-functions/unstable_cache.mdx
+++ b/docs/02-app/02-api-reference/04-functions/unstable_cache.mdx
@@ -20,6 +20,9 @@ export default async function Component({ userID }) {
 }
 ```
 
+> **Good to know**:
+> Accessing dynamic data sources such as `headers` or `cookies` inside a cache scope is not supported. If you need this data inside a cached function use `headers` oustide of the cached function and pass the required dynamic data in as an argument.
+
 > **Warning**: This API is unstable and may change in the future. We will provide migration documentation and codemods, if needed, as this API stabilizes.
 
 ## Parameters