diff --git a/package.json b/package.json
index c3a676f9db..0b0424c551 100644
--- a/package.json
+++ b/package.json
@@ -73,12 +73,12 @@
     "moment": "^2.15.2",
     "parse-database-url": "^0.3.0",
     "pg": "^6.1.0",
-    "prom-client": "^7.1.0",
+    "prom-client": "^9.1.1",
     "response-time": "^2.3.2",
     "serve-favicon": "^2.3.0",
     "unleash-frontend": "^3.0.0-alpha.1",
     "yallist": "^2.0.0",
-    "yargs": "^6.5.0"
+    "yargs": "^8.0.2"
   },
   "devDependencies": {
     "@types/node": "^8.0.4",
diff --git a/yarn.lock b/yarn.lock
index 9a8f0c1527..a724df1123 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3442,12 +3442,6 @@ os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
-os-locale@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
-  dependencies:
-    lcid "^1.0.0"
-
 os-locale@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.0.0.tgz#15918ded510522b81ee7ae5a309d54f639fc39a4"
@@ -3800,9 +3794,9 @@ progress@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
 
-prom-client@^7.1.0:
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/prom-client/-/prom-client-7.2.0.tgz#0d65ae8a0f7a10d4afbedba4856a6e55e22a447c"
+prom-client@^9.1.1:
+  version "9.1.1"
+  resolved "https://registry.yarnpkg.com/prom-client/-/prom-client-9.1.1.tgz#9588f1681a0869616c7de916ad33ae8f1e03fc10"
   dependencies:
     tdigest "^0.1.1"
     util-extend "^1.0.1"
@@ -5046,10 +5040,6 @@ when@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/when/-/when-2.0.1.tgz#8d872fe15e68424c91b4b724e848e0807dab6642"
 
-which-module@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
-
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
@@ -5167,12 +5157,6 @@ yallist@^2.0.0, yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yargs-parser@^4.2.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
-  dependencies:
-    camelcase "^3.0.0"
-
 yargs-parser@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
@@ -5185,25 +5169,7 @@ yargs-parser@^7.0.0:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@^6.5.0:
-  version "6.6.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-6.6.0.tgz#782ec21ef403345f830a808ca3d513af56065208"
-  dependencies:
-    camelcase "^3.0.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^4.2.0"
-
-yargs@^8.0.1:
+yargs@^8.0.1, yargs@^8.0.2:
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
   dependencies: