diff --git a/package-lock.json b/package-lock.json
index 9e2a5f1..6e6ecb3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -274,9 +274,9 @@
       }
     },
     "acorn": {
-      "version": "5.7.2",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.2.tgz",
-      "integrity": "sha512-cJrKCNcr2kv8dlDnbw+JPUGjHZzo4myaxOLmpOX8a+rgX94YeTcTMv/LFJUSByRpc+i4GgVnnhLxvMu/2Y+rqw==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-dynamic-import": {
@@ -1789,7 +1789,7 @@
     },
     "chalk": {
       "version": "1.1.3",
-      "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
@@ -4066,7 +4066,7 @@
     },
     "http-errors": {
       "version": "1.6.3",
-      "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
       "dev": true,
       "requires": {