diff --git a/projects/proj4/package-lock.json b/projects/proj4/package-lock.json
index 29cabf2..e57da07 100644
--- a/projects/proj4/package-lock.json
+++ b/projects/proj4/package-lock.json
@@ -23,9 +23,9 @@
       }
     },
     "acorn": {
-      "version": "6.3.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-      "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA=="
+      "version": "6.4.2",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+      "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ=="
     },
     "acorn-jsx": {
       "version": "5.1.0",
@@ -754,7 +754,7 @@
     "minimist": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-      "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
+      "integrity": "sha512-iotkTvxc+TwOm5Ieim8VnSNvCDjCK9S8G3scJ50ZthspSxa7jx50jkhYduuAtAjvfDUwSgOwf8+If99AlOEhyw=="
     },
     "mkdirp": {
       "version": "0.5.1",
@@ -853,7 +853,7 @@
     "optimist": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
+      "integrity": "sha512-snN4O4TkigujZphWLN0E//nQmm7790RYaE53DdL7ZYwee2D8DDo9/EyYiKUfN3rneWUjhJnueija3G9I2i0h3g==",
       "requires": {
         "minimist": "~0.0.1",
         "wordwrap": "~0.0.2"
@@ -1250,7 +1250,7 @@
     "wordwrap": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+      "integrity": "sha512-1tMA907+V4QmxV7dbRvb4/8MaRALK6q9Abid3ndMYnbyo8piisCmeONVqVSXqQA3KaP4SLt5b7ud6E2sqP8TFw=="
     },
     "wrap-ansi": {
       "version": "2.1.0",