diff --git a/package-lock.json b/package-lock.json
index 9fee2bc..52e478a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -55,7 +55,7 @@
     },
     "async": {
       "version": "1.5.2",
-      "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
       "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
       "dev": true
     },
@@ -131,7 +131,7 @@
     },
     "commander": {
       "version": "2.9.0",
-      "resolved": "http://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
       "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
       "dev": true,
       "requires": {
@@ -964,7 +964,7 @@
     },
     "source-map": {
       "version": "0.2.0",
-      "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.2.0.tgz",
       "integrity": "sha1-2rc/vPwrqBm03gO9b26qSBZLP50=",
       "dev": true,
       "optional": true,
@@ -1107,9 +1107,9 @@
       }
     },
     "tree-kill": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.1.tgz",
-      "integrity": "sha512-4hjqbObwlh2dLyW4tcz0Ymw0ggoaVDMveUB9w8kFSQScdRLo0gxO9J7WFcUBo+W3C1TLdFIEwNOWebgZZ0RH9Q==",
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz",
+      "integrity": "sha512-L0Orpi8qGpRG//Nd+H90vFB+3iHnue1zSSGmNOOCh1GLJ7rUKVwV2HvijphGQS2UmhUZewS9VgvxYIdgr+fG1A==",
       "dev": true
     },
     "tunnel-agent": {