diff --git a/.changeset/thick-rabbits-double.md b/.changeset/thick-rabbits-double.md
new file mode 100644
index 0000000000..4ff38bf860
--- /dev/null
+++ b/.changeset/thick-rabbits-double.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-auth-backend': patch
+---
+
+Update OAuth refresh handler to pass updated refresh token to ensure cookie is updated with new value.
diff --git a/plugins/auth-backend/src/providers/oauth2/provider.ts b/plugins/auth-backend/src/providers/oauth2/provider.ts
index 36e2f6ed99..cf70580664 100644
--- a/plugins/auth-backend/src/providers/oauth2/provider.ts
+++ b/plugins/auth-backend/src/providers/oauth2/provider.ts
@@ -166,6 +166,7 @@ export class OAuth2AuthProvider implements OAuthHandlers {
         accessToken: result.accessToken,
         scope: result.params.scope,
         expiresInSeconds: result.params.expires_in,
+        refreshToken: result.refreshToken,
       },
       profile,
     };