diff --git a/package-lock.json b/package-lock.json
index fb6fe10..afacd58 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "worldwind-earth-explorer",
       "version": "2.0.0",
       "devDependencies": {
-        "gh-pages": "^4.0.0"
+        "gh-pages": "^5.0.0"
       }
     },
     "node_modules/array-union": {
@@ -33,13 +33,10 @@
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-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
-      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
-      "dev": true,
-      "dependencies": {
-        "lodash": "^4.17.14"
-      }
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
+      "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==",
+      "dev": true
     },
     "node_modules/balanced-match": {
       "version": "1.0.0",
@@ -76,9 +73,9 @@
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     "node_modules/email-addresses": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/email-addresses/-/email-addresses-3.1.0.tgz",
-      "integrity": "sha512-k0/r7GrWVL32kZlGwfPNgB2Y/mMXVTq/decgLczm/j34whdaspNrZO8CnXPf1laaHxI6ptUlsnAxN+UAPw+fzg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/email-addresses/-/email-addresses-5.0.0.tgz",
+      "integrity": "sha512-4OIPYlA6JXqtVn8zpHpGiI7vE6EQOAg16aGnDMIAlZVinnoZ8208tW1hAbjWydgN/4PLTT9q+O1K6AH/vALJGw==",
       "dev": true
     },
     "node_modules/escape-string-regexp": {
@@ -167,14 +164,14 @@
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     },
     "node_modules/gh-pages": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/gh-pages/-/gh-pages-4.0.0.tgz",
-      "integrity": "sha512-p8S0T3aGJc68MtwOcZusul5qPSNZCalap3NWbhRUZYu1YOdp+EjZ+4kPmRM8h3NNRdqw00yuevRjlkuSzCn7iQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/gh-pages/-/gh-pages-5.0.0.tgz",
+      "integrity": "sha512-Nqp1SjkPIB94Xw/3yYNTUL+G2dxlhjvv1zeN/4kMC1jfViTEqhtVz/Ba1zSXHuvXCN9ADNS1dN4r5/J/nZWEQQ==",
       "dev": true,
       "dependencies": {
-        "async": "^2.6.1",
+        "async": "^3.2.4",
         "commander": "^2.18.0",
-        "email-addresses": "^3.0.1",
+        "email-addresses": "^5.0.0",
         "filenamify": "^4.3.0",
         "find-cache-dir": "^3.3.1",
         "fs-extra": "^8.1.0",
@@ -264,12 +261,6 @@
         "node": ">=8"
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-    "node_modules/lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
-    },
     "node_modules/make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
@@ -477,13 +468,10 @@
       "dev": true
     },
     "async": {
-      "version": "2.6.4",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
-      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
-      "dev": true,
-      "requires": {
-        "lodash": "^4.17.14"
-      }
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
+      "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==",
+      "dev": true
     },
     "balanced-match": {
       "version": "1.0.0",
@@ -520,9 +508,9 @@
       "dev": true
     },
     "email-addresses": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/email-addresses/-/email-addresses-3.1.0.tgz",
-      "integrity": "sha512-k0/r7GrWVL32kZlGwfPNgB2Y/mMXVTq/decgLczm/j34whdaspNrZO8CnXPf1laaHxI6ptUlsnAxN+UAPw+fzg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/email-addresses/-/email-addresses-5.0.0.tgz",
+      "integrity": "sha512-4OIPYlA6JXqtVn8zpHpGiI7vE6EQOAg16aGnDMIAlZVinnoZ8208tW1hAbjWydgN/4PLTT9q+O1K6AH/vALJGw==",
       "dev": true
     },
     "escape-string-regexp": {
@@ -587,14 +575,14 @@
       "dev": true
     },
     "gh-pages": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/gh-pages/-/gh-pages-4.0.0.tgz",
-      "integrity": "sha512-p8S0T3aGJc68MtwOcZusul5qPSNZCalap3NWbhRUZYu1YOdp+EjZ+4kPmRM8h3NNRdqw00yuevRjlkuSzCn7iQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/gh-pages/-/gh-pages-5.0.0.tgz",
+      "integrity": "sha512-Nqp1SjkPIB94Xw/3yYNTUL+G2dxlhjvv1zeN/4kMC1jfViTEqhtVz/Ba1zSXHuvXCN9ADNS1dN4r5/J/nZWEQQ==",
       "dev": true,
       "requires": {
-        "async": "^2.6.1",
+        "async": "^3.2.4",
         "commander": "^2.18.0",
-        "email-addresses": "^3.0.1",
+        "email-addresses": "^5.0.0",
         "filenamify": "^4.3.0",
         "find-cache-dir": "^3.3.1",
         "fs-extra": "^8.1.0",
@@ -668,12 +656,6 @@
         "p-locate": "^4.1.0"
       }
     },
-    "lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
-    },
     "make-dir": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.1.0.tgz",
diff --git a/package.json b/package.json
index b1df9dc..aea1b2c 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "private": true,
   "homepage": "https://worldwind.earth/explorer",
   "devDependencies": {
-    "gh-pages": "^4.0.0"
+    "gh-pages": "^5.0.0"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",