diff --git a/packages/angular_devkit/benchmark/package.json b/packages/angular_devkit/benchmark/package.json
index e8b17b59a988..11d9229c8aeb 100644
--- a/packages/angular_devkit/benchmark/package.json
+++ b/packages/angular_devkit/benchmark/package.json
@@ -16,7 +16,7 @@
   "dependencies": {
     "@angular-devkit/core": "0.0.0",
     "minimist": "1.2.5",
-    "pidusage": "2.0.20",
+    "pidusage": "2.0.21",
     "pidtree": "0.5.0",
     "rxjs": "6.6.0",
     "tree-kill": "^1.2.0"
diff --git a/yarn.lock b/yarn.lock
index 57316a4fff72..c804ed3b4a83 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10192,12 +10192,12 @@ pidtree@^0.3.0:
   resolved "https://registry.yarnpkg.com/pidtree/-/pidtree-0.3.1.tgz#ef09ac2cc0533df1f3250ccf2c4d366b0d12114a"
   integrity sha512-qQbW94hLHEqCg7nhby4yRC7G2+jYHY4Rguc2bjw7Uug4GIJuu1tvf2uHaZv5Q8zdt+WKJ6qK1FOI6amaWUo5FA==
 
-pidusage@2.0.20:
-  version "2.0.20"
-  resolved "https://registry.yarnpkg.com/pidusage/-/pidusage-2.0.20.tgz#206ad92f086c892c014dcfb9159909eaec072e18"
-  integrity sha512-ObZwSCGhHAu+fDpHeIP7ZTy5YbQNOguJCKQE02kSnlEvBgj62cParJ4nzYQxpXauKUzT3e0CeSb1Y9Cgbry2qQ==
+pidusage@2.0.21:
+  version "2.0.21"
+  resolved "https://registry.yarnpkg.com/pidusage/-/pidusage-2.0.21.tgz#7068967b3d952baea73e57668c98b9eaa876894e"
+  integrity sha512-cv3xAQos+pugVX+BfXpHsbyz/dLzX+lr44zNMsYiGxUw+kV5sgQCIcLd1z+0vq+KyC7dJ+/ts2PsfgWfSC3WXA==
   dependencies:
-    safe-buffer "^5.1.2"
+    safe-buffer "^5.2.1"
 
 pidusage@^2.0.17:
   version "2.0.18"
@@ -11669,7 +11669,7 @@ safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
-safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@^5.2.1, safe-buffer@~5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==