diff --git a/package-lock.json b/package-lock.json
index f3dc3f1..4ae319e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "bootstrap-ui-datetime-picker",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2440,6 +2440,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -3210,7 +3211,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "loose-envify": {
           "version": "1.2.0",
@@ -4121,9 +4123,9 @@
       "dev": true
     },
     "qs": {
-      "version": "6.3.2",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.3.2.tgz",
-      "integrity": "sha1-51vV9uJoEioqDgvaYwslUMFmUCw=",
+      "version": "6.3.3",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.3.3.tgz",
+      "integrity": "sha512-f8CQ/sKJBr9vfNJBdGiPzTSPUufuWyvOFkCYJKN9voqPWuBuhdlSZM78dOHKigtZ0BwuktYGrRFW2DXXc/f2Fg==",
       "dev": true
     },
     "read-pkg": {