diff --git a/package-lock.json b/package-lock.json
index a11c547..0117320 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -668,9 +668,9 @@
       }
     },
     "config": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/config/-/config-2.0.1.tgz",
-      "integrity": "sha512-aTaviJnC8ZjQYx8kQf4u6tWqIxWolyQQ3LqXgnCLAsIb78JrUshHG0YuzIarzTaVVe1Pazms3TXImfYra8UsyQ==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/config/-/config-3.0.0.tgz",
+      "integrity": "sha512-QMr3BCOcHdgXx8t8cLfBhWtHcIAAMikaxUc2XASuH2A93g9kOIRch7sXFQdSvdMxhQobnctWm2y68YJYRttJlw==",
       "requires": {
         "json5": "^1.0.1"
       }
@@ -2251,7 +2251,7 @@
       "dependencies": {
         "minimist": {
           "version": "1.2.0",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
         }
       }
diff --git a/package.json b/package.json
index e6d9b3c..3de19af 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "author": "kn1cht",
   "license": "MIT",
   "dependencies": {
-    "config": "^2.0.1",
+    "config": "^3.0.0",
     "japanese": "^1.2.0",
     "js-yaml": "^3.8.4",
     "kuromojin": "^1.3.2",