diff --git a/package-lock.json b/package-lock.json
index 8a619591c5..714d891597 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2235,6 +2235,12 @@
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
       "dev": true
     },
+    "at-least-node": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/at-least-node/-/at-least-node-1.0.0.tgz",
+      "integrity": "sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==",
+      "dev": true
+    },
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
@@ -5277,14 +5283,15 @@
       }
     },
     "fs-extra": {
-      "version": "8.1.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-8.1.0.tgz",
-      "integrity": "sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.0.0.tgz",
+      "integrity": "sha512-pmEYSk3vYsG/bF651KPUXZ+hvjpgWYw/Gc7W9NFUe3ZVLczKKWIij3IKpOrQcdw4TILtibFslZ0UmR8Vvzig4g==",
       "dev": true,
       "requires": {
+        "at-least-node": "^1.0.0",
         "graceful-fs": "^4.2.0",
-        "jsonfile": "^4.0.0",
-        "universalify": "^0.1.0"
+        "jsonfile": "^6.0.1",
+        "universalify": "^1.0.0"
       },
       "dependencies": {
         "graceful-fs": {
@@ -5292,6 +5299,22 @@
           "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz",
           "integrity": "sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==",
           "dev": true
+        },
+        "jsonfile": {
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.0.1.tgz",
+          "integrity": "sha512-jR2b5v7d2vIOust+w3wtFKZIfpC2pnRmFAhAC/BuweZFQR8qZzxH1OyrQ10HmdVYiXWkYUqPVsz91cG7EL2FBg==",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.6",
+            "universalify": "^1.0.0"
+          }
+        },
+        "universalify": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/universalify/-/universalify-1.0.0.tgz",
+          "integrity": "sha512-rb6X1W158d7pRQBg5gkR8uPaSfiids68LTJQYOtEUhoJUWBdaQHsuT/EUduxXYxcrt4r5PJ4fuHW1MHT6p0qug==",
+          "dev": true
         }
       }
     },
diff --git a/package.json b/package.json
index 71d43f81cb..a51b249c8d 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "eslint-config-openlayers": "^13.0.0",
     "expect.js": "0.3.1",
     "front-matter": "^3.0.2",
-    "fs-extra": "^8.0.0",
+    "fs-extra": "^9.0.0",
     "glob": "^7.1.5",
     "globby": "^11.0.0",
     "handlebars": "4.7.3",