diff --git a/es6/package.json b/es6/package.json
index 9bf7a5a..321a4ed 100644
--- a/es6/package.json
+++ b/es6/package.json
@@ -67,7 +67,7 @@
     "karma-mocha": "^1.3.0",
     "karma-mocha-reporter": "^2.2.5",
     "mocha": "^6.1.4",
-    "node-fetch": "^2.6.0",
+    "node-fetch": "^2.6.1",
     "nyc": "^14.1.1",
     "prettier": "1.17.0"
   },
diff --git a/es6/yarn.lock b/es6/yarn.lock
index 8f5269f..41be17d 100644
--- a/es6/yarn.lock
+++ b/es6/yarn.lock
@@ -1645,10 +1645,10 @@ node-environment-flags@1.0.5:
     object.getownpropertydescriptors "^2.0.3"
     semver "^5.7.0"
 
-node-fetch@^2.2.0, node-fetch@^2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
-  integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
+node-fetch@^2.2.0, node-fetch@^2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
+  integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
 
 normalize-package-data@^2.3.2:
   version "2.5.0"