diff --git a/package-lock.json b/package-lock.json
index c599aec..1d94f4d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19733,19 +19733,19 @@
       }
     },
     "terser": {
-      "version": "3.14.1",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.14.1.tgz",
-      "integrity": "sha512-NSo3E99QDbYSMeJaEk9YW2lTg3qS9V0aKGlb+PlOrei1X02r1wSBHCNX/O+yeTRFSWPKPIGj6MqvvdqV4rnVGw==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "requires": {
-        "commander": "~2.17.1",
+        "commander": "^2.20.0",
         "source-map": "~0.6.1",
-        "source-map-support": "~0.5.6"
+        "source-map-support": "~0.5.12"
       },
       "dependencies": {
         "commander": {
-          "version": "2.17.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-          "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg=="
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ=="
         },
         "source-map": {
           "version": "0.6.1",
diff --git a/package.json b/package.json
index 1e43093..80638fc 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "rxjs": "~6.5.5",
     "sw-precache": "^5.2.0",
     "sw-precache-webpack-plugin": "^0.11.4",
-    "terser": "3.14.1",
+    "terser": "4.8.1",
     "tslib": "^1.10.0",
     "zone.js": "~0.10.2"
   },