diff --git a/aio/package.json b/aio/package.json
index 8b6949dc5d9dd..60072f1015492 100644
--- a/aio/package.json
+++ b/aio/package.json
@@ -145,5 +145,8 @@
     "vrsource-tslint-rules": "^4.0.1",
     "watchr": "^3.0.1",
     "yargs": "^7.0.2"
+  },
+  "resolutions": {
+    "@angular-devkit/build-optimizer": "0.0.29"
   }
 }
diff --git a/aio/yarn.lock b/aio/yarn.lock
index 499a88b35c59f..cf1e6e592411e 100644
--- a/aio/yarn.lock
+++ b/aio/yarn.lock
@@ -2,9 +2,9 @@
 # yarn lockfile v1
 
 
-"@angular-devkit/build-optimizer@~0.0.28":
-  version "0.0.28"
-  resolved "https://registry.yarnpkg.com/@angular-devkit/build-optimizer/-/build-optimizer-0.0.28.tgz#96db6361b9bd5e0609e07a391c96aaf888d71aa6"
+"@angular-devkit/build-optimizer@0.0.29", "@angular-devkit/build-optimizer@~0.0.28":
+  version "0.0.29"
+  resolved "https://registry.yarnpkg.com/@angular-devkit/build-optimizer/-/build-optimizer-0.0.29.tgz#ce5b76016bb06978b3da39e601a269578bbb671a"
   dependencies:
     loader-utils "^1.1.0"
     source-map "^0.5.6"