diff --git a/packages/health-check/src/utils.js b/packages/health-check/src/utils.js
index 595fbb1e..7e5b09b8 100644
--- a/packages/health-check/src/utils.js
+++ b/packages/health-check/src/utils.js
@@ -85,6 +85,9 @@ function getAuthCookie() {
         // retry authentication
         return authenticate();
       }
+
+      // rethrow unhandled exception
+      throw error;
     }
   }