diff --git a/package-lock.json b/package-lock.json
index b260c17b..ffbfef4e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3770,9 +3770,9 @@
       }
     },
     "dotenv": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-4.0.0.tgz",
-      "integrity": "sha1-hk7xN5rO1Vzm+V3r7NzhefegzR0=",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-6.1.0.tgz",
+      "integrity": "sha512-/veDn2ztgRlB7gKmE3i9f6CmDIyXAy6d5nBq+whO9SLX+Zs1sXEgFLPi+aSuWqUuusMfbi84fT8j34fs1HaYUw==",
       "dev": true
     },
     "duplexer": {
diff --git a/package.json b/package.json
index c963cd4c..61e4dfef 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "chalk": "1.1.3",
     "copy-webpack-plugin": "^4.3.1",
     "css-loader": "0.28.11",
-    "dotenv": "4.0.0",
+    "dotenv": "6.1.0",
     "esdoc": "^1.1.0",
     "esdoc-ecmascript-proposal-plugin": "^1.0.0",
     "esdoc-standard-plugin": "^1.0.0",