diff --git a/package.json b/package.json
index cb12baa..3481de6 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "gatsby-plugin-react-helmet": "^4.0.0",
     "gatsby-plugin-robots-txt": "^1.5.0",
     "gatsby-plugin-sharp": "^3.0.0",
-    "gatsby-plugin-sitemap": "^3.0.0",
+    "gatsby-plugin-sitemap": "^4.10.0",
     "gatsby-plugin-typescript": "^3.0.0",
     "gatsby-plugin-typography": "^3.0.0",
     "gatsby-remark-copy-linked-files": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 25c7e19..3509a58 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1231,10 +1231,10 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
-"@babel/runtime@^7.10.0", "@babel/runtime@^7.10.2", "@babel/runtime@^7.11.2", "@babel/runtime@^7.12.5", "@babel/runtime@^7.3.4", "@babel/runtime@^7.7.2", "@babel/runtime@^7.8.4", "@babel/runtime@^7.9.2":
-  version "7.14.0"
-  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.14.0.tgz#46794bc20b612c5f75e62dd071e24dfd95f1cbe6"
-  integrity sha512-JELkvo/DlpNdJ7dlyw/eY7E0suy5i5GQH+Vlxaq1nsNJ+H7f4Vtv3jMeCEgRhZZQFXTjldYfQgv2qmM6M1v5wA==
+"@babel/runtime@^7.10.0", "@babel/runtime@^7.10.2", "@babel/runtime@^7.11.2", "@babel/runtime@^7.12.5", "@babel/runtime@^7.15.4", "@babel/runtime@^7.3.4", "@babel/runtime@^7.7.2", "@babel/runtime@^7.8.4", "@babel/runtime@^7.9.2":
+  version "7.15.4"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.15.4.tgz#fd17d16bfdf878e6dd02d19753a39fa8a8d9c84a"
+  integrity sha512-99catp6bHCaxr4sJ/DbTGgHS4+Rs2RVd2g7iOap6SLGPDknRK9ztKNsE/Fg6QhSeh1FGE5f6gHGQmvvn3I3xhw==
   dependencies:
     regenerator-runtime "^0.13.4"
 
@@ -2452,6 +2452,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.17.2.tgz#1e94476db57ec93a372c7f7d29aa5707cfb92339"
   integrity sha512-sld7b/xmFum66AAKuz/rp/CUO8+98fMpyQ3SBfzzBNGMd/1iHBTAg9oyAvcYlAj46bpc74r91jSw2iFdnx29nw==
 
+"@types/node@^15.0.1":
+  version "15.14.9"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.14.9.tgz#bc43c990c3c9be7281868bbc7b8fdd6e2b57adfa"
+  integrity sha512-qjd88DrCxupx/kJD5yQgZdcYKZKSIGBVDIBE1/LTGcNm3d2Np/jxojkdePDdfnBHJc5W7vSMpbJ1aB7p/Py69A==
+
 "@types/node@^8.5.7":
   version "8.10.66"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.66.tgz#dd035d409df322acc83dff62a602f12a5783bbb3"
@@ -2542,6 +2547,13 @@
     "@types/glob" "*"
     "@types/node" "*"
 
+"@types/sax@^1.2.1":
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/@types/sax/-/sax-1.2.3.tgz#b630ac1403ebd7812e0bf9a10de9bf5077afb348"
+  integrity sha512-+QSw6Tqvs/KQpZX8DvIl3hZSjNFLW/OqE5nlyHXtTwODaJvioN2rOWpBNEWZp2HZUFhOh+VohmJku/WxEXU2XA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/scheduler@*":
   version "0.16.1"
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.1.tgz#18845205e86ff0038517aab7a18a62a6b9f71275"
@@ -3085,6 +3097,11 @@ arg@^4.1.0:
   resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.3.tgz#269fc7ad5b8e42cb63c896d5666017261c144089"
   integrity sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==
 
+arg@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/arg/-/arg-5.0.1.tgz#eb0c9a8f77786cad2af8ff2b862899842d7b6adb"
+  integrity sha512-e0hDa9H2Z9AwFkk2qDlwhoMYE4eToKarchkQHovNdLTCYMHZHeRjI71crOh+dio4K6u1IcwubQqo79Ga4CyAQA==
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
@@ -7132,16 +7149,15 @@ gatsby-plugin-sharp@^3.0.0:
     svgo "1.3.2"
     uuid "3.4.0"
 
-gatsby-plugin-sitemap@^3.0.0:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/gatsby-plugin-sitemap/-/gatsby-plugin-sitemap-3.3.0.tgz#c269e2f9032802b8984addde90488541a0a2e7b0"
-  integrity sha512-ChkAeyOIzmWOWmeaLexDRMSH6fmEG46jEi5N8xN85AsbCanz36HY7IZxsjlSdDsLOuoG3RofvStoCDjz8ECCOQ==
+gatsby-plugin-sitemap@^4.10.0:
+  version "4.10.0"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-sitemap/-/gatsby-plugin-sitemap-4.10.0.tgz#08141aefb1d2987b03da8a69de02db92ba2cd3d8"
+  integrity sha512-q7WdaZLzOQnSJDZ2/ArTnSpCG26Eqgpt9jvni6wUqPxLic9irwvzIHhZxmZp8I7iq6Ue1Ii1MD5kWO2VTYb7GA==
   dependencies:
-    "@babel/runtime" "^7.12.5"
+    "@babel/runtime" "^7.15.4"
     common-tags "^1.8.0"
     minimatch "^3.0.4"
-    pify "^3.0.0"
-    sitemap "^1.13.0"
+    sitemap "^7.0.0"
 
 gatsby-plugin-typescript@^3.0.0, gatsby-plugin-typescript@^3.6.0:
   version "3.6.0"
@@ -13842,13 +13858,15 @@ sisteransi@^1.0.5:
   resolved "https://registry.yarnpkg.com/sisteransi/-/sisteransi-1.0.5.tgz#134d681297756437cc05ca01370d3a7a571075ed"
   integrity sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==
 
-sitemap@^1.13.0:
-  version "1.13.0"
-  resolved "https://registry.yarnpkg.com/sitemap/-/sitemap-1.13.0.tgz#569cbe2180202926a62a266cd3de09c9ceb43f83"
-  integrity sha1-Vpy+IYAgKSamKiZs094Jyc60P4M=
+sitemap@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/sitemap/-/sitemap-7.0.0.tgz#022bef4df8cba42e38e1fe77039f234cab0372b6"
+  integrity sha512-Ud0jrRQO2k7fEtPAM+cQkBKoMvxQyPKNXKDLn8tRVHxRCsdDQ2JZvw+aZ5IRYYQVAV9iGxEar6boTwZzev+x3g==
   dependencies:
-    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@^3.0.0:
   version "3.0.0"
@@ -15152,7 +15170,7 @@ underscore.string@^3.3.5:
     sprintf-js "^1.0.3"
     util-deprecate "^1.0.2"
 
-underscore@*, underscore@^1.7.0:
+underscore@*:
   version "1.13.1"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.13.1.tgz#0c1c6bd2df54b6b69f2314066d65b6cde6fcf9d1"
   integrity sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g==
@@ -15448,11 +15466,6 @@ urix@^0.1.0:
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
   integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
-url-join@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-1.1.0.tgz#741c6c2f4596c4830d6718460920d0c92202dc78"
-  integrity sha1-dBxsL0WWxIMNZxhGCSDQySIC3Hg=
-
 url-loader@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-4.1.1.tgz#28505e905cae158cf07c92ca622d7f237e70a4e2"