diff --git a/package-lock.json b/package-lock.json
index aa64eb9..a9f7575 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -971,6 +971,12 @@
         "tinydate": "^1.0.0"
       }
     },
+    "source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "dev": true
+    },
     "source-map-support": {
       "version": "0.5.16",
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.16.tgz",
@@ -1016,22 +1022,14 @@
       "integrity": "sha512-UMcjqzuNeUGHd3ZzSzRFXn22Z06VlPrTS8CJwFkkE+qKWn2tVRgsG4b62zZBcR/7SMcufT/Ouxpv/gbA8LaQcQ=="
     },
     "terser": {
-      "version": "4.6.2",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.2.tgz",
-      "integrity": "sha512-6FUjJdY2i3WZAtYBtnV06OOcOfzl+4hSKYE9wgac8rkLRBToPDDrBB2AcHwQD/OKDxbnvhVy2YgOPWO2SsKWqg==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "dev": true,
       "requires": {
         "commander": "^2.20.0",
         "source-map": "~0.6.1",
         "source-map-support": "~0.5.12"
-      },
-      "dependencies": {
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-          "dev": true
-        }
       }
     },
     "tinydate": {