diff --git a/package-lock.json b/package-lock.json
index c4fad6d..54817d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -113,6 +113,7 @@
             "version": "2.6.9",
             "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
             "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+            "optional": true,
             "requires": {
                 "ms": "2.0.0"
             }
@@ -319,7 +320,8 @@
         "ms": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-            "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+            "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+            "optional": true
         },
         "nan": {
             "version": "2.14.0",
@@ -373,9 +375,9 @@
             "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
         },
         "qs": {
-            "version": "6.5.2",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-            "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
+            "version": "6.5.3",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.3.tgz",
+            "integrity": "sha512-qxXIEh4pCGfHICj1mAJQ2/2XVZkjCDTcEgfoSQxc/fYivUZxTkk7L3bDBJSoNrEzXI17oUO5Dp07ktqE5KzczA=="
         },
         "ref": {
             "version": "1.3.5",