diff --git a/package-lock.json b/package-lock.json
index ac16fe2..9ce43e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,28 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "data-uri-to-buffer": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.1.tgz",
+      "integrity": "sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A=="
+    },
+    "fetch-blob": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.2.0.tgz",
+      "integrity": "sha512-7yAQpD2UMJzLi1Dqv7qFYnPbaPx7ZfFK6PiIxQ4PfkGPyNyl2Ugx+a/umUonmKqjhM4DnfbMvdX6otXq83soQQ==",
+      "requires": {
+        "node-domexception": "^1.0.0",
+        "web-streams-polyfill": "^3.0.3"
+      }
+    },
+    "formdata-polyfill": {
+      "version": "4.0.10",
+      "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
+      "integrity": "sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==",
+      "requires": {
+        "fetch-blob": "^3.1.2"
+      }
+    },
     "mime": {
       "version": "2.4.4",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.4.tgz",
@@ -15,17 +37,39 @@
       "integrity": "sha512-vZnmaPbZe0j2uM4GBy+nPDDziw2xCtHERxYcxy9g3aB1u8JahOzoMN+oDp30mNdTbaZwJvMhX+9Tdwz+wTDVaw=="
     },
     "netlify-plugin-submit-sitemap": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/netlify-plugin-submit-sitemap/-/netlify-plugin-submit-sitemap-0.1.4.tgz",
-      "integrity": "sha512-HtAqNa6QIS4WRbDIiX9I1N5tm5zNl3h/VJY5Ol5fs65Z7cki/E+MWZI25x6uqczk8ZGFHKWbxVoEU11guXfmBw==",
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/netlify-plugin-submit-sitemap/-/netlify-plugin-submit-sitemap-0.4.0.tgz",
+      "integrity": "sha512-5ntDtSKZRHaCDrDXh4sH4V7lNEEsoi01lsmSUuqJ/ikPHf0XEErjsKba8TsM3iaZRYEHI9bQse3BWgguwuwIIQ==",
       "requires": {
-        "node-fetch": "^2.6.0"
+        "node-fetch": "^3.2.3"
+      },
+      "dependencies": {
+        "node-fetch": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.3.2.tgz",
+          "integrity": "sha512-dRB78srN/l6gqWulah9SrxeYnxeddIG30+GOqK/9OlLVyLg3HPnr6SqOWTWOXKRwC2eGYCkZ59NNuSgvSrpgOA==",
+          "requires": {
+            "data-uri-to-buffer": "^4.0.0",
+            "fetch-blob": "^3.1.4",
+            "formdata-polyfill": "^4.0.10"
+          }
+        }
       }
     },
+    "node-domexception": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
+      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ=="
+    },
     "node-fetch": {
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
       "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+    },
+    "web-streams-polyfill": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
+      "integrity": "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw=="
     }
   }
 }
diff --git a/package.json b/package.json
index ce4bc45..ebca5d0 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "dependencies": {
     "mime": "^2.4.4",
     "netlify-plugin-hugo-cache-resources": "^0.1.4",
-    "netlify-plugin-submit-sitemap": "^0.1.4",
+    "netlify-plugin-submit-sitemap": "^0.4.0",
     "node-fetch": "^2.6.0"
   }
 }