diff --git a/packages/kbn-optimizer/src/worker/webpack.config.ts b/packages/kbn-optimizer/src/worker/webpack.config.ts
index 976ff5c52e7c..882138e32ffb 100644
--- a/packages/kbn-optimizer/src/worker/webpack.config.ts
+++ b/packages/kbn-optimizer/src/worker/webpack.config.ts
@@ -224,6 +224,7 @@ export function getWebpackConfig(
                       includePaths: [Path.resolve(worker.repoRoot, 'node_modules')],
                       sourceMap: true,
                       quietDeps: true,
+                      silenceDeprecations: ['import', 'legacy-js-api'],
                     },
                   },
                 },