diff --git a/package-lock.json b/package-lock.json
index e9b2afa..e4e606b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17676,20 +17676,13 @@
       }
     },
     "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"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.17.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-          "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg=="
-        }
+        "source-map-support": "~0.5.12"
       }
     },
     "terser-webpack-plugin": {
diff --git a/package.json b/package.json
index 220160c..bf039d3 100644
--- a/package.json
+++ b/package.json
@@ -100,7 +100,7 @@
     "redux-thunk": "^2.3.0",
     "reflect-metadata": "^0.1.12",
     "solc": "^0.5.8",
-    "terser": "3.14.1",
+    "terser": "4.8.1",
     "tsoa": "2.3.81",
     "web3": "1.0.0-beta.37",
     "winston": "^2.2.0"