diff --git a/docs/pages/getting-started/providers/notion.mdx b/docs/pages/getting-started/providers/notion.mdx
index 32aca0008a..2ca6aaa5c5 100644
--- a/docs/pages/getting-started/providers/notion.mdx
+++ b/docs/pages/getting-started/providers/notion.mdx
@@ -138,3 +138,4 @@ app.use(
 
 - You need to select "Public Integration" on the configuration page to get an `oauth_id` and `oauth_secret`. Private integrations do not provide these details.
 - You must provide a `clientId` and `clientSecret` to use this provider, as-well as a redirect URI (due to this being required by Notion endpoint to fetch tokens).
+- The Notion OAuth API doesn’t support refreshing tokens, and so doesn’t return a refresh token. The access token never expires.
diff --git a/packages/core/src/providers/notion.ts b/packages/core/src/providers/notion.ts
index d96820cfcf..b9ad29d19b 100644
--- a/packages/core/src/providers/notion.ts
+++ b/packages/core/src/providers/notion.ts
@@ -118,6 +118,13 @@ export default function NotionProvider<P extends NotionProfile>(
     type: "oauth",
     token: {
       url: `${NOTION_HOST}/v1/oauth/token`,
+      async conform(response) {
+        const body = await response.json()
+        if (body?.refresh_token === null) {
+          delete body.refresh_token
+        }
+        return new Response(JSON.stringify(body), response)
+      },
     },
     userinfo: {
       url: `${NOTION_HOST}/v1/users`,