diff --git a/lib/modules/manager/npm/extract/monorepo.ts b/lib/modules/manager/npm/extract/monorepo.ts
index 479bf6b13f5964adfff6f3f8ccd264ad11802e41..3870a71dd7ffed9948f8f175f627b5addd45237c 100644
--- a/lib/modules/manager/npm/extract/monorepo.ts
+++ b/lib/modules/manager/npm/extract/monorepo.ts
@@ -28,7 +28,9 @@ export async function detectMonorepos(
         delete p.managerData.lernaPackages;
         delete p.managerData.lernaClient;
       } else {
-        logger.debug('Detected lerna <7');
+        logger.warn(
+          'Support for lerna <7 is now deprecated, please prioritize updating to v7'
+        );
       }
     }
   }