diff --git a/backend/src/server/plugins/auth/inject-identity.ts b/backend/src/server/plugins/auth/inject-identity.ts
index b33f2fbe6..9de15cd34 100644
--- a/backend/src/server/plugins/auth/inject-identity.ts
+++ b/backend/src/server/plugins/auth/inject-identity.ts
@@ -138,6 +138,11 @@ export const injectIdentity = fp(
         return;
       }
 
+      // Authentication is handled on a route-level
+      if (req.url === "/api/v1/relays/heartbeat-instance-relay") {
+        return;
+      }
+
       // Authentication is handled on a route-level here.
       if (req.url.includes("/api/v1/workflow-integrations/microsoft-teams/message-endpoint")) {
         return;