diff --git a/frontend/src/common/services/config.service.ts b/frontend/src/common/services/config.service.ts
index 272dac4..bc36761 100644
--- a/frontend/src/common/services/config.service.ts
+++ b/frontend/src/common/services/config.service.ts
@@ -57,7 +57,7 @@ export class ConfigService {
     return config
   }
 
-  getLatestStableVersion (): Version {
+  getLatestStableVersion (): Version|undefined {
     return this.versions[0]
   }