diff --git a/yarn.lock b/yarn.lock
index 1934c48..8b250f3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -484,9 +484,9 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
-eventemitter3@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/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"
 
 exec-sh@^0.2.0:
   version "0.2.0"
@@ -571,6 +571,10 @@ flagged-respawn@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/flagged-respawn/-/flagged-respawn-0.3.2.tgz#ff191eddcd7088a675b2610fffc976be9b8074b5"
 
+follow-redirects@^1.0.0:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.0.tgz#b42e8d93a2a7eea5ed88633676d6597bc8e384db"
+
 for-in@^0.1.5:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-0.1.6.tgz#c9f96e89bfad18a545af5ec3ed352a1d9e5b4dc8"
@@ -735,11 +739,12 @@ homedir-polyfill@^1.0.0:
     parse-passwd "^1.0.0"
 
 http-proxy@^1.8.1:
-  version "1.16.2"
-  resolved "https://registry.yarnpkg.com/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"
   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-server@^0.9.0:
   version "0.9.0"
@@ -1374,7 +1379,7 @@ request@^2.58.0, request@^2.67.0, request@^2.74.0:
     tunnel-agent "~0.4.1"
     uuid "^3.0.0"
 
-requires-port@1.x.x:
+requires-port@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"