diff --git a/package.json b/package.json
index 8bf5b42..5517acd 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "@types/fs-extra": "^9.0.12",
     "@types/get-port": "^4.2.0",
     "@types/html-webpack-plugin": "^3.2.6",
-    "@types/jest": "^26.0.23",
+    "@types/jest": "^27.0.2",
     "@types/jszip": "^3.4.1",
     "@types/openpgp": "^4.4.18",
     "@types/react": "^17.0.32",
diff --git a/yarn.lock b/yarn.lock
index 423136f..f9112d7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1542,6 +1542,17 @@
     "@types/yargs" "^15.0.0"
     chalk "^4.0.0"
 
+"@jest/types@^27.2.5":
+  version "27.2.5"
+  resolved "https://registry.yarnpkg.com/@jest/types/-/types-27.2.5.tgz#420765c052605e75686982d24b061b4cbba22132"
+  integrity sha512-nmuM4VuDtCZcY+eTpw+0nvstwReMsjPoj7ZR80/BbixulhLaiX+fbv8oeLW8WZlJMcsGQsTmMKT/iTZu1Uy/lQ==
+  dependencies:
+    "@types/istanbul-lib-coverage" "^2.0.0"
+    "@types/istanbul-reports" "^3.0.0"
+    "@types/node" "*"
+    "@types/yargs" "^16.0.0"
+    chalk "^4.0.0"
+
 "@jimp/bmp@^0.16.1":
   version "0.16.1"
   resolved "https://registry.yarnpkg.com/@jimp/bmp/-/bmp-0.16.1.tgz#6e2da655b2ba22e721df0795423f34e92ef13768"
@@ -2140,13 +2151,13 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@^26.0.23":
-  version "26.0.23"
-  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.23.tgz#a1b7eab3c503b80451d019efb588ec63522ee4e7"
-  integrity sha512-ZHLmWMJ9jJ9PTiT58juykZpL7KjwJywFN3Rr2pTSkyQfydf/rk22yS7W8p5DaVUMQ2BQC7oYiU3FjbTM/mYrOA==
+"@types/jest@^27.0.2":
+  version "27.0.2"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-27.0.2.tgz#ac383c4d4aaddd29bbf2b916d8d105c304a5fcd7"
+  integrity sha512-4dRxkS/AFX0c5XW6IPMNOydLn2tEhNhJV7DnYK+0bjoJZ+QTmfucBlihX7aoEsh/ocYtkLC73UbnBXBXIxsULA==
   dependencies:
-    jest-diff "^26.0.0"
-    pretty-format "^26.0.0"
+    jest-diff "^27.0.0"
+    pretty-format "^27.0.0"
 
 "@types/json-schema@^7.0.4":
   version "7.0.5"
@@ -2356,6 +2367,13 @@
   dependencies:
     "@types/yargs-parser" "*"
 
+"@types/yargs@^16.0.0":
+  version "16.0.4"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-16.0.4.tgz#26aad98dd2c2a38e421086ea9ad42b9e51642977"
+  integrity sha512-T8Yc9wt/5LbJyCaLiHPReJa0kApcIgJ7Bn735GjItUfh08Z1pJvu8QZqb9s+mMvKV6WUQRV7K2R46YbjMXTTJw==
+  dependencies:
+    "@types/yargs-parser" "*"
+
 "@types/yauzl@^2.9.1":
   version "2.9.1"
   resolved "https://registry.yarnpkg.com/@types/yauzl/-/yauzl-2.9.1.tgz#d10f69f9f522eef3cf98e30afb684a1e1ec923af"
@@ -2676,6 +2694,11 @@ ansi-regex@^5.0.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
   integrity sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==
 
+ansi-regex@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.1.tgz#082cb2c89c9fe8659a311a53bd6a4dc5301db304"
+  integrity sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==
+
 ansi-regex@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-6.0.0.tgz#ecc7f5933cbe5ac7b33e209a5ff409ab1669c6b2"
@@ -2700,6 +2723,11 @@ ansi-styles@^4.0.0, ansi-styles@^4.1.0:
   dependencies:
     color-convert "^2.0.1"
 
+ansi-styles@^5.0.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-5.2.0.tgz#07449690ad45777d1924ac2abb2fc8895dba836b"
+  integrity sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==
+
 ansi-to-html@^0.6.4:
   version "0.6.14"
   resolved "https://registry.yarnpkg.com/ansi-to-html/-/ansi-to-html-0.6.14.tgz#65fe6d08bba5dd9db33f44a20aec331e0010dad8"
@@ -4491,6 +4519,11 @@ diff-sequences@^26.6.2:
   resolved "https://registry.yarnpkg.com/diff-sequences/-/diff-sequences-26.6.2.tgz#48ba99157de1923412eed41db6b6d4aa9ca7c0b1"
   integrity sha512-Mv/TDa3nZ9sbc5soK+OoA74BsS3mL37yixCvUAQkiuA4Wz6YtwP/K47n2rv2ovzHZvoiQeA5FTQOschKkEwB0Q==
 
+diff-sequences@^27.0.6:
+  version "27.0.6"
+  resolved "https://registry.yarnpkg.com/diff-sequences/-/diff-sequences-27.0.6.tgz#3305cb2e55a033924054695cc66019fd7f8e5723"
+  integrity sha512-ag6wfpBFyNXZ0p8pcuIDS//D8H062ZQJ3fzYxjpmeKjnz8W4pekL3AI8VohmyZmsWW2PWaHgjsmqR6L13101VQ==
+
 diff@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
@@ -6475,7 +6508,7 @@ jest-config@^26.6.3:
     micromatch "^4.0.2"
     pretty-format "^26.6.2"
 
-jest-diff@^26.0.0, jest-diff@^26.6.2:
+jest-diff@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-26.6.2.tgz#1aa7468b52c3a68d7d5c5fdcdfcd5e49bd164394"
   integrity sha512-6m+9Z3Gv9wN0WFVasqjCL/06+EFCMTqDEUl/b87HYK2rAPTyfz4ZIuSlPhY51PIQRWx5TaxeF1qmXKe9gfN3sA==
@@ -6485,6 +6518,16 @@ jest-diff@^26.0.0, jest-diff@^26.6.2:
     jest-get-type "^26.3.0"
     pretty-format "^26.6.2"
 
+jest-diff@^27.0.0:
+  version "27.3.1"
+  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-27.3.1.tgz#d2775fea15411f5f5aeda2a5e02c2f36440f6d55"
+  integrity sha512-PCeuAH4AWUo2O5+ksW4pL9v5xJAcIKPUPfIhZBcG1RKv/0+dvaWTQK1Nrau8d67dp65fOqbeMdoil+6PedyEPQ==
+  dependencies:
+    chalk "^4.0.0"
+    diff-sequences "^27.0.6"
+    jest-get-type "^27.3.1"
+    pretty-format "^27.3.1"
+
 jest-docblock@^26.0.0:
   version "26.0.0"
   resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-26.0.0.tgz#3e2fa20899fc928cb13bd0ff68bd3711a36889b5"
@@ -6533,6 +6576,11 @@ jest-get-type@^26.3.0:
   resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-26.3.0.tgz#e97dc3c3f53c2b406ca7afaed4493b1d099199e0"
   integrity sha512-TpfaviN1R2pQWkIihlfEanwOXK0zcxrKEE4MlU6Tn7keoXdN6/3gK/xl0yEh8DOunn5pOVGKf8hB4R9gVh04ig==
 
+jest-get-type@^27.3.1:
+  version "27.3.1"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-27.3.1.tgz#a8a2b0a12b50169773099eee60a0e6dd11423eff"
+  integrity sha512-+Ilqi8hgHSAdhlQ3s12CAVNd8H96ZkQBfYoXmArzZnOfAtVAJEiPDBirjByEblvG/4LPJmkL+nBqPO3A1YJAEg==
+
 jest-haste-map@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-26.6.2.tgz#dd7e60fe7dc0e9f911a23d79c5ff7fb5c2cafeaa"
@@ -8753,7 +8801,7 @@ pretty-error@^2.1.1:
     renderkid "^2.0.1"
     utila "~0.4"
 
-pretty-format@^26.0.0, pretty-format@^26.6.2:
+pretty-format@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-26.6.2.tgz#e35c2705f14cb7fe2fe94fa078345b444120fc93"
   integrity sha512-7AeGuCYNGmycyQbCqd/3PWH4eOoX/OiCa0uphp57NVTeAGdJGaAliecxwBDHYQCIvrW7aDBZCYeNTP/WX69mkg==
@@ -8763,6 +8811,16 @@ pretty-format@^26.0.0, pretty-format@^26.6.2:
     ansi-styles "^4.0.0"
     react-is "^17.0.1"
 
+pretty-format@^27.0.0, pretty-format@^27.3.1:
+  version "27.3.1"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-27.3.1.tgz#7e9486365ccdd4a502061fa761d3ab9ca1b78df5"
+  integrity sha512-DR/c+pvFc52nLimLROYjnXPtolawm+uWDxr4FjuLDLUn+ktWnSN851KoHwHzzqq6rfCOjkzN8FLgDrSub6UDuA==
+  dependencies:
+    "@jest/types" "^27.2.5"
+    ansi-regex "^5.0.1"
+    ansi-styles "^5.0.0"
+    react-is "^17.0.1"
+
 process-nextick-args@~2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"