diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c69ad7..34459a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - The `headers` field of the `Sanity.Response` now returns a map instead of a list of tuples. See https://hexdocs.pm/req/changelog.html#change-headers-to-be-maps for details.
   - The `:http_options` option for `Sanity.request/2` is now passed to `Req.request/1` instead of to Finch. The available options will be different.
   - The `:max_attempts` and `:retry_delay` options have been removed from `Sanity.request/2`. `Req` handles retries for us.
-  - The `source` field in the `Sanity.Error` exception may now contain a `Req.Response` struct instead of a `Finch.Response`.
+  - The `source` field in the `Sanity.Error` may contain different values. See [`Sanity.Error`](https://hexdocs.pm/sanity/Sanity.Error.html) for details.
 
 ## [1.3.0] - 2023-07-19
 ### Changed
diff --git a/lib/sanity/error.ex b/lib/sanity/error.ex
index 0c236ed..7f7b316 100644
--- a/lib/sanity/error.ex
+++ b/lib/sanity/error.ex
@@ -4,7 +4,7 @@ defmodule Sanity.Error do
   the following:
 
     * `%Req.Response{}` - If response with an unsupported HTTP status (like 5xx) is received.
-    * `%Mint.TransportError{}` - If a network error such as a timeout occurred.
+    * `%Mint.TransportError{}` - If a network error such as a timeout occurred. In `req` 0.5 this will change to `%Req.TransportError{}`.
     * `%Sanity.Response{}` - If a 4xx response is received during a call to `Sanity.request!/2`.
   """