diff --git a/package.json b/package.json
index 5725927..247d22e 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "jest": "^26.1.0",
     "prettier": "^2.0.5",
     "svelte-routing": "^1.4.2",
-    "ts-jest": "^26.1.3",
+    "ts-jest": "^26.5.6",
     "type-coverage": "^2.9.0",
     "typedoc": "^0.17.8",
     "typescript": "^3.9.7"
diff --git a/yarn.lock b/yarn.lock
index dd89cad..cdb3ada 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3236,7 +3236,7 @@ jest-snapshot@^26.1.0:
     pretty-format "^26.1.0"
     semver "^7.3.2"
 
-jest-util@26.x, jest-util@^26.1.0:
+jest-util@^26.1.0:
   version "26.1.0"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.1.0.tgz#80e85d4ba820decacf41a691c2042d5276e5d8d8"
   integrity sha512-rNMOwFQevljfNGvbzNQAxdmXQ+NawW/J72dmddsK0E8vgxXCMtwQ/EH0BiWEIxh0hhMcTsxwAxINt7Lh46Uzbg==
@@ -3466,20 +3466,15 @@ locate-path@^5.0.0:
   dependencies:
     p-locate "^4.1.0"
 
-lodash.memoize@4.x:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
-  integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
-
 lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
-lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19:
-  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+lodash@4.x, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -4718,21 +4713,21 @@ tr46@^2.0.2:
   dependencies:
     punycode "^2.1.1"
 
-ts-jest@^26.1.3:
-  version "26.1.3"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.1.3.tgz#aac928a05fdf13e3e6dfbc8caec3847442667894"
-  integrity sha512-beUTSvuqR9SmKQEylewqJdnXWMVGJRFqSz2M8wKJe7GBMmLZ5zw6XXKSJckbHNMxn+zdB3guN2eOucSw2gBMnw==
+ts-jest@^26.5.6:
+  version "26.5.6"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.5.6.tgz#c32e0746425274e1dfe333f43cd3c800e014ec35"
+  integrity sha512-rua+rCP8DxpA8b4DQD/6X2HQS8Zy/xzViVYfEs2OQu68tkCuKLV0Md8pmX55+W24uRIyAsf/BajRfxOs+R2MKA==
   dependencies:
     bs-logger "0.x"
     buffer-from "1.x"
     fast-json-stable-stringify "2.x"
-    jest-util "26.x"
+    jest-util "^26.1.0"
     json5 "2.x"
-    lodash.memoize "4.x"
+    lodash "4.x"
     make-error "1.x"
     mkdirp "1.x"
     semver "7.x"
-    yargs-parser "18.x"
+    yargs-parser "20.x"
 
 ts-lib-utils@^2.9.0:
   version "2.9.0"
@@ -5104,7 +5099,12 @@ y18n@^4.0.0:
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
   integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
 
-yargs-parser@18.x, yargs-parser@^18.1.2:
+yargs-parser@20.x:
+  version "20.2.7"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.7.tgz#61df85c113edfb5a7a4e36eb8aa60ef423cbc90a"
+  integrity sha512-FiNkvbeHzB/syOjIUxFDCnhSfzAL8R5vs40MgLFBorXACCOAEaWu0gRZl14vG8MR9AOJIZbmkjhusqBYZ3HTHw==
+
+yargs-parser@^18.1.2:
   version "18.1.3"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
   integrity sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==