diff --git a/package-lock.json b/package-lock.json
index d44054c..fad48a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1126,9 +1126,9 @@
       }
     },
     "crypto-js": {
-      "version": "3.1.9-1",
-      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-3.1.9-1.tgz",
-      "integrity": "sha1-/aGedh/Ad+Af+/3G6f38WeiAbNg="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-4.0.0.tgz",
+      "integrity": "sha512-bzHZN8Pn+gS7DQA6n+iUmBfl0hO5DJq++QP3U6uTucDtk/0iGpXd/Gg7CGR0p8tJhofJyaKoWBuJI4eAO00BBg=="
     },
     "css-b64-images": {
       "version": "0.2.5",
diff --git a/package.json b/package.json
index 1fa186a..e06856c 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "axios": "^0.19.0",
     "chalk": "^3.0.0",
     "codecov": "^3.6.5",
-    "crypto-js": "^3.1.9-1",
+    "crypto-js": "^4.0.0",
     "detect-character-encoding": "^0.8.0",
     "encoding-japanese": "^1.0.30",
     "jshashes": "^1.0.7",