diff --git a/yarn.lock b/yarn.lock
index c330e0c..908d9c9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1806,7 +1806,7 @@ debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.6, debug@^2.6.
   dependencies:
     ms "2.0.0"
 
-debug@=3.1.0, debug@^3.1.0:
+debug@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   dependencies:
@@ -2367,9 +2367,10 @@ event-emitter@~0.3.5:
     d "1"
     es5-ext "~0.10.14"
 
-eventemitter3@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
+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"
@@ -2655,17 +2656,10 @@ flush-write-stream@^1.0.0:
     inherits "^2.0.1"
     readable-stream "^2.0.4"
 
-follow-redirects@^1.0.0:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.1.tgz#67a8f14f5a1f67f962c2c46469c79eaec0a90291"
-  dependencies:
-    debug "^3.1.0"
-
-follow-redirects@^1.3.0:
-  version "1.5.8"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.8.tgz#1dbfe13e45ad969f813e86c00e5296f525c885a1"
-  dependencies:
-    debug "=3.1.0"
+follow-redirects@^1.0.0, follow-redirects@^1.3.0:
+  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"
@@ -3075,10 +3069,11 @@ http-proxy-middleware@~0.17.4:
     micromatch "^2.3.11"
 
 http-proxy@^1.16.2:
-  version "1.17.0"
-  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
+  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 "^3.0.0"
+    eventemitter3 "^4.0.0"
     follow-redirects "^1.0.0"
     requires-port "^1.0.0"
 
@@ -5260,6 +5255,7 @@ require-uncached@^1.0.3:
 requires-port@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
 
 resolve-cwd@^2.0.0:
   version "2.0.0"