diff --git a/exercise_04/package-lock.json b/exercise_04/package-lock.json
index 3657a07..4d1e031 100644
--- a/exercise_04/package-lock.json
+++ b/exercise_04/package-lock.json
@@ -2679,7 +2679,6 @@
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2827,14 +2826,6 @@
           "bundled": true,
           "optional": true
         },
-        "minimatch": {
-          "version": "3.0.4",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        },
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
@@ -4006,9 +3997,9 @@
       "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
     },
     "minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
       "requires": {
         "brace-expansion": "^1.1.7"
       }