diff --git a/package-lock.json b/package-lock.json
index 22927d3..05412a5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -579,7 +579,7 @@
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-          "resolved": "http://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
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+              "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
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       "version": "1.0.0",
-      "resolved": "http://registry.npmjs.org/tapable/-/tapable-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/tapable/-/tapable-1.0.0.tgz",
       "integrity": "sha512-dQRhbNQkRnaqauC7WqSJ21EEksgT0fYZX2lqXzGkpo8JNig9zGZTYoMGvyI2nWmXlE2VSVXVDu7wLVGu/mQEsg==",
       "dev": true
     },
@@ -10453,7 +10474,7 @@
         },
         "yargs": {
           "version": "3.10.0",
-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
           "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
           "dev": true,
           "requires": {
@@ -10909,7 +10930,7 @@
         },
         "yargs": {
           "version": "6.6.0",
-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz",
           "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
           "dev": true,
           "requires": {
@@ -10936,7 +10957,7 @@
             },
             "yargs-parser": {
               "version": "4.2.1",
-              "resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+              "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
               "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
               "dev": true,
               "requires": {
@@ -11155,7 +11176,7 @@
         },
         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
         },
diff --git a/yarn.lock b/yarn.lock
index b208181..8b760bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2394,9 +2394,9 @@ 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"
 
 events@^1.0.0:
   version "1.1.1"
@@ -2758,10 +2758,8 @@ flush-write-stream@^1.0.0:
     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"
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.0.tgz#b42e8d93a2a7eea5ed88633676d6597bc8e384db"
 
 for-each@^0.3.2:
   version "0.3.3"
@@ -3247,10 +3245,10 @@ 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"
   dependencies:
-    eventemitter3 "^3.0.0"
+    eventemitter3 "^4.0.0"
     follow-redirects "^1.0.0"
     requires-port "^1.0.0"