diff --git a/package-lock.json b/package-lock.json
index c20b7da..1413f0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1704,6 +1704,12 @@
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       "dev": true
     },
+    "acorn": {
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
+      "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
+      "dev": true
+    },
     "acorn-jsx": {
       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.1.tgz",
@@ -3251,12 +3257,6 @@
         "eslint-visitor-keys": "^1.3.0"
       },
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-        "acorn": {
-          "version": "8.0.1",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.0.1.tgz",
-          "integrity": "sha512-dmKn4pqZ29iQl2Pvze1zTrps2luvls2PBY//neO2WJ0s10B3AxJXshN+Ph7B4GrhfGhHXrl4dnUwyNNXQcnWGQ==",
-          "dev": true
-        },
         "eslint-visitor-keys": {
           "version": "1.3.0",
           "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz",
@@ -6541,9 +6541,9 @@
       "dev": true
     },
     "terser": {
-      "version": "4.8.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.0.tgz",
-      "integrity": "sha512-EAPipTNeWsb/3wLPeup1tVPaXfIaU68xMnVdPafIL1TV05OhASArYyIfFvnvJCNrR2NIOvDVNNTFRa+Re2MWyw==",
+      "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",
@@ -7184,9 +7184,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "8.0.1",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.0.1.tgz",
-          "integrity": "sha512-dmKn4pqZ29iQl2Pvze1zTrps2luvls2PBY//neO2WJ0s10B3AxJXshN+Ph7B4GrhfGhHXrl4dnUwyNNXQcnWGQ==",
+          "version": "6.4.2",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+          "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
           "dev": true
         },
         "braces": {