diff --git a/public/datetimepicker/package-lock.json b/public/datetimepicker/package-lock.json
index c9a9f4c..8136a6c 100644
--- a/public/datetimepicker/package-lock.json
+++ b/public/datetimepicker/package-lock.json
@@ -903,8 +903,8 @@
       "dev": true
     },
     "concat": {
-      "version": "github:azer/concat#c64c5cbc2e60b0bc1a8f4bceafed661f66f19dcf",
-      "from": "github:azer/concat",
+      "version": "1.0.0",
+      "resolved": "github:azer/concat#c64c5cbc2e60b0bc1a8f4bceafed661f66f19dcf",
       "dev": true,
       "requires": {
         "parallel-loop": "github:azer/parallel-loop",
@@ -1312,9 +1312,9 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
-      "integrity": "sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
       "dev": true,
       "requires": {
         "bn.js": "^4.4.0",