diff --git a/package-lock.json b/package-lock.json
index 3c1a97ad..20a9e236 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
         "html-minifier": "^4.0.0",
         "stylelint": "^13.13.1",
         "stylelint-config-standard": "^22.0.0",
-        "terser": "^5.8.0"
+        "terser": "^5.9.0"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -3632,9 +3632,9 @@
       }
     },
     "node_modules/terser": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-5.8.0.tgz",
-      "integrity": "sha512-f0JH+6yMpneYcRJN314lZrSwu9eKkUFEHLN/kNy8ceh8gaRiLgFPJqrB9HsXjhEGdv4e/ekjTOFxIlL6xlma8A==",
+      "version": "5.9.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.9.0.tgz",
+      "integrity": "sha512-h5hxa23sCdpzcye/7b8YqbE5OwKca/ni0RQz1uRX3tGh8haaGHqcuSqbGRybuAKNdntZ0mDgFNXPJ48xQ2RXKQ==",
       "dependencies": {
         "commander": "^2.20.0",
         "source-map": "~0.7.2",
@@ -6571,9 +6571,9 @@
       }
     },
     "terser": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-5.8.0.tgz",
-      "integrity": "sha512-f0JH+6yMpneYcRJN314lZrSwu9eKkUFEHLN/kNy8ceh8gaRiLgFPJqrB9HsXjhEGdv4e/ekjTOFxIlL6xlma8A==",
+      "version": "5.9.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.9.0.tgz",
+      "integrity": "sha512-h5hxa23sCdpzcye/7b8YqbE5OwKca/ni0RQz1uRX3tGh8haaGHqcuSqbGRybuAKNdntZ0mDgFNXPJ48xQ2RXKQ==",
       "requires": {
         "commander": "^2.20.0",
         "source-map": "~0.7.2",
diff --git a/package.json b/package.json
index b90eec75..c5ec4f20 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,6 @@
     "html-minifier": "^4.0.0",
     "stylelint": "^13.13.1",
     "stylelint-config-standard": "^22.0.0",
-    "terser": "^5.8.0"
+    "terser": "^5.9.0"
   }
 }