diff --git a/yarn.lock b/yarn.lock
index f3025d5..83a29cf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1771,7 +1771,7 @@ debug@2.6.9, debug@^2.3.3:
   dependencies:
     ms "2.0.0"
 
-debug@^2.1.1, debug@^2.2.0, debug@^2.4.5, debug@^2.6.8:
+debug@^2.1.1, debug@^2.2.0, debug@^2.6.8:
   version "2.6.8"
   resolved "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
@@ -2318,9 +2318,10 @@ event-emitter@~0.3.5:
     d "1"
     es5-ext "~0.10.14"
 
-eventemitter3@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.npmjs.org/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
+eventemitter3@^4.0.0:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
+  integrity sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==
 
 events@^1.0.0:
   version "1.1.1"
@@ -2625,11 +2626,10 @@ flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
 
-follow-redirects@^1.2.3:
-  version "1.2.4"
-  resolved "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.2.4.tgz#355e8f4d16876b43f577b0d5ce2668b9723214ea"
-  dependencies:
-    debug "^2.4.5"
+follow-redirects@^1.0.0, follow-redirects@^1.2.3:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.0.tgz#b42e8d93a2a7eea5ed88633676d6597bc8e384db"
+  integrity sha512-aq6gF1BEKje4a9i9+5jimNFIpq4Q1WiwBToeRK5NvZBd/TRsmW8BsJfOEGkr76TbOyPVD3OVDN910EcUNtRYEA==
 
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
@@ -3064,11 +3064,13 @@ http-proxy-middleware@^0.18.0:
     micromatch "^3.1.9"
 
 http-proxy@^1.16.2:
-  version "1.16.2"
-  resolved "https://registry.npmjs.org/http-proxy/-/http-proxy-1.16.2.tgz#06dff292952bf64dbe8471fa9df73066d4f37742"
+  version "1.18.1"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
+  integrity sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==
   dependencies:
-    eventemitter3 "1.x.x"
-    requires-port "1.x.x"
+    eventemitter3 "^4.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
 
 http-signature@~1.1.0:
   version "1.1.1"
@@ -5111,9 +5113,10 @@ require-uncached@^1.0.2:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
 
-requires-port@1.x.x:
+requires-port@^1.0.0:
   version "1.0.0"
-  resolved "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
 
 resolve-from@^1.0.0:
   version "1.0.1"