diff --git a/package-lock.json b/package-lock.json
index b3ad4aa..1d67d7f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1729,9 +1729,9 @@
       "dev": true
     },
     "source-map-support": {
-      "version": "0.5.16",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.16.tgz",
-      "integrity": "sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==",
+      "version": "0.5.19",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
+      "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
       "dev": true,
       "requires": {
         "buffer-from": "^1.0.0",
@@ -1849,14 +1849,22 @@
       }
     },
     "terser": {
-      "version": "4.6.7",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.7.tgz",
-      "integrity": "sha512-fmr7M1f7DBly5cX2+rFDvmGBAaaZyPrHYK4mMdHEDAdNTqXSZgSOfqsfGq2HqPGT/1V0foZZuCZFx8CHKgAk3g==",
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.7.1.tgz",
+      "integrity": "sha512-b3e+d5JbHAe/JSjwsC3Zn55wsBIM7AsHLjKxT31kGCldgbpFePaFo+PiddtO6uwRZWRw7sPXmAN8dTW61xmnSg==",
       "dev": true,
       "requires": {
         "commander": "^2.20.0",
-        "source-map": "~0.6.1",
-        "source-map-support": "~0.5.12"
+        "source-map": "~0.7.2",
+        "source-map-support": "~0.5.19"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.7.3",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.3.tgz",
+          "integrity": "sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==",
+          "dev": true
+        }
       }
     },
     "to-regex-range": {
diff --git a/package.json b/package.json
index 94438c2..1184921 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,6 @@
     "mocha": "7.1.1",
     "mocha-chrome": "2.2.0",
     "proclaim": "3.6.0",
-    "terser": "4.6.7"
+    "terser": "5.7.1"
   }
 }