diff --git a/package-lock.json b/package-lock.json
index 03b3bb7..a6a758f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -674,6 +674,11 @@
         "assert-plus": "^1.0.0"
       }
     },
+    "data-uri-to-buffer": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.0.tgz",
+      "integrity": "sha512-Vr3mLBA8qWmcuschSLAOogKgQ/Jwxulv3RNE4FXnYWRGujzrRWQI4m12fQqRkwX06C0KanhLr4hK+GydchZsaA=="
+    },
     "data-urls": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-1.1.0.tgz",
@@ -1015,6 +1020,22 @@
       "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz",
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc="
     },
+    "fetch-blob": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.1.4.tgz",
+      "integrity": "sha512-Eq5Xv5+VlSrYWEqKrusxY1C3Hm/hjeAsCGVG3ft7pZahlUAChpGZT/Ms1WmSLnEAisEXszjzu/s+ce6HZB2VHA==",
+      "requires": {
+        "node-domexception": "^1.0.0",
+        "web-streams-polyfill": "^3.0.3"
+      },
+      "dependencies": {
+        "web-streams-polyfill": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.2.0.tgz",
+          "integrity": "sha512-EqPmREeOzttaLRm5HS7io98goBgZ7IVz79aDvqjD0kYXLtFZTc0T/U6wHTPKyIjb+MdN7DFIIX6hgdBEpWmfPA=="
+        }
+      }
+    },
     "fill-range": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-4.0.0.tgz",
@@ -1061,7 +1082,7 @@
       "dependencies": {
         "combined-stream": {
           "version": "1.0.6",
-          "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
           "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
           "requires": {
             "delayed-stream": "~1.0.0"
@@ -1069,6 +1090,14 @@
         }
       }
     },
+    "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"
+      }
+    },
     "fragment-cache": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
@@ -1908,6 +1937,11 @@
         "to-regex": "^3.0.1"
       }
     },
+    "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-es-module-loader": {
       "version": "0.3.8",
       "resolved": "https://registry.npmjs.org/node-es-module-loader/-/node-es-module-loader-0.3.8.tgz",
@@ -1920,9 +1954,14 @@
       }
     },
     "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": "3.1.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.1.1.tgz",
+      "integrity": "sha512-SMk+vKgU77PYotRdWzqZGTZeuFKlsJ0hu4KPviQKkfY+N3vn2MIzr0rvpnYpR8MtB3IEuhlEcuOLbGvLRlA+yg==",
+      "requires": {
+        "data-uri-to-buffer": "^4.0.0",
+        "fetch-blob": "^3.1.3",
+        "formdata-polyfill": "^4.0.10"
+      }
     },
     "number-is-nan": {
       "version": "1.0.1",
@@ -2129,7 +2168,7 @@
         },
         "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=",
           "dev": true
         },
@@ -2197,7 +2236,7 @@
         },
         "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=",
           "dev": true
         },
@@ -2321,7 +2360,7 @@
     },
     "request": {
       "version": "2.85.0",
-      "resolved": "http://registry.npmjs.org/request/-/request-2.85.0.tgz",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.85.0.tgz",
       "integrity": "sha512-8H7Ehijd4js+s6wuVPLjwORxD4zeuyjYugprdOXlPSqaApmL/QOy+EB/beICHVCHkGMKNh5rvihb5ov+IDw4mg==",
       "dev": true,
       "requires": {
diff --git a/package.json b/package.json
index b8a699d..78de128 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "fs-extra": "^7.0.1",
     "jquery": "^3.3.1",
     "jsdom": "^13.0.0",
-    "node-fetch": "^2.3.0",
+    "node-fetch": "^3.1.1",
     "opn": "^5.4.0",
     "text-encoding": "git+https://github.com/inexorabletash/text-encoding.git",
     "vblob": "^1.0.2",