diff --git a/package-lock.json b/package-lock.json
index 0f02738..4d14226 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -195,11 +195,24 @@
         "any-observable": "^0.3.0"
       }
     },
+    "@types/node": {
+      "version": "15.0.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.0.1.tgz",
+      "integrity": "sha512-TMkXt0Ck1y0KKsGr9gJtWGjttxlZnnvDtphxUOSd0bfaR6Q1jle+sPvrzNR1urqYTWMinoKvjKfXUGsumaO1PA=="
+    },
     "@types/q": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/@types/q/-/q-1.5.2.tgz",
       "integrity": "sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw=="
     },
+    "@types/sax": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@types/sax/-/sax-1.2.1.tgz",
+      "integrity": "sha512-dqYdvN7Sbw8QT/0Ci5rhjE4/iCMJEM0Y9rHpCu+gGXD9Lwbz28t6HI2yegsB6BoV1sShRMU6lAmAcgRjmFy7LA==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@webassemblyjs/ast": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.8.5.tgz",
@@ -480,6 +493,11 @@
         "readable-stream": "^2.0.6"
       }
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+    "arg": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/arg/-/arg-5.0.0.tgz",
+      "integrity": "sha512-4P8Zm2H+BRS+c/xX1LrHw0qKpEhdlZjLCgWy+d78T9vqa2Z2SiD2wMrYuWIAFy5IZUD7nnNXroRttz+0RzlrzQ=="
+    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -4946,6 +4964,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-2.0.0.tgz",
       "integrity": "sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=",
+      "optional": true,
       "requires": {
         "is-glob": "^2.0.0"
       }
@@ -5763,7 +5782,8 @@
     "is-extglob": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz",
-      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA="
+      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
+      "optional": true
     },
     "is-finite": {
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@@ -5782,6 +5802,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-2.0.1.tgz",
       "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
+      "optional": true,
       "requires": {
         "is-extglob": "^1.0.0"
       }
@@ -7551,6 +7572,7 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
       "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+      "optional": true,
       "requires": {
         "remove-trailing-separator": "^1.0.1"
       }
@@ -11693,12 +11715,14 @@
       }
     },
     "sitemap": {
-      "version": "1.13.0",
-      "resolved": "https://registry.npmjs.org/sitemap/-/sitemap-1.13.0.tgz",
-      "integrity": "sha1-Vpy+IYAgKSamKiZs094Jyc60P4M=",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/sitemap/-/sitemap-7.0.0.tgz",
+      "integrity": "sha512-Ud0jrRQO2k7fEtPAM+cQkBKoMvxQyPKNXKDLn8tRVHxRCsdDQ2JZvw+aZ5IRYYQVAV9iGxEar6boTwZzev+x3g==",
       "requires": {
-        "underscore": "^1.7.0",
-        "url-join": "^1.1.0"
+        "@types/node": "^15.0.1",
+        "@types/sax": "^1.2.1",
+        "arg": "^5.0.0",
+        "sax": "^1.2.4"
       }
     },
     "slash": {
@@ -12684,11 +12708,6 @@
         }
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-    "underscore": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.9.1.tgz",
-      "integrity": "sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg=="
-    },
     "unicode": {
       "version": "11.0.1",
       "resolved": "https://registry.npmjs.org/unicode/-/unicode-11.0.1.tgz",
@@ -12847,11 +12866,6 @@
         }
       }
     },
-    "url-join": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/url-join/-/url-join-1.1.0.tgz",
-      "integrity": "sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg="
-    },
     "use": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
diff --git a/package.json b/package.json
index 5fb9f80..7680c9f 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "redux-thunk": "^2.3.0",
     "response-time": "^2.3.2",
     "sass-loader": "^7.1.0",
-    "sitemap": "^1.13.0",
+    "sitemap": "^7.0.0",
     "slug": "^0.9.1",
     "stripe": "^6.7.0",
     "theme": "file:theme",