diff --git a/package-lock.json b/package-lock.json
index 2db371d..e6b9dff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -380,9 +380,9 @@
       "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
     },
     "node-fetch": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.3.0.tgz",
-      "integrity": "sha512-MOd8pV3fxENbryESLgVIeaGKrdl+uaYhCSSVkjeOb/31/njTpcis5aWfdqgNlHIrKOLRbMnfPINPOML2CIFeXA=="
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw=="
     },
     "object-assign": {
       "version": "4.1.1",
diff --git a/package.json b/package.json
index 06fd9a9..d2494e8 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,6 @@
   "dependencies": {
     "@types/node-fetch": "^2.1.4",
     "nadesiko3": "^3.0.63",
-    "node-fetch": "^2.3.0"
+    "node-fetch": "^2.6.1"
   }
 }