diff --git a/package.json b/package.json
index eb702d70..c62148c3 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,7 @@
     "protractor": "7.0.0",
     "snyk": "1.604.0",
     "ts-node": "10.0.0",
+    "ts-jest": "26.5.6",
     "tsickle": "0.40.0",
     "tslib": "2.2.0",
     "typescript": "4.2.4",
diff --git a/yarn.lock b/yarn.lock
index bb487fec..314aa027 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7790,7 +7790,7 @@ jest-util@26.x:
     is-ci "^2.0.0"
     micromatch "^4.0.2"
 
-jest-util@^26.6.2:
+jest-util@^26.1.0, jest-util@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.6.2.tgz#907535dbe4d5a6cb4c47ac9b926f6af29576cbc1"
   integrity sha512-MDW0fKfsn0OI7MS7Euz6h8HNDXVQ0gaM9uW6RjfDmd1DAFcaxX9OqIakHIqhbnmF08Cf2DLDG+ulq8YQQ0Lp0Q==
@@ -8525,16 +8525,16 @@ lodash.values@^4.3.0:
   resolved "https://registry.yarnpkg.com/lodash.values/-/lodash.values-4.3.0.tgz#a3a6c2b0ebecc5c2cba1c17e6e620fe81b53d347"
   integrity sha1-o6bCsOvsxcLLocF+bmIP6BtT00c=
 
+lodash@4.x, lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 lodash@^4.11.2, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19:
   version "4.17.20"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
   integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
 
-lodash@^4.17.21:
-  version "4.17.21"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
-  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
-
 log-symbols@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-4.0.0.tgz#69b3cc46d20f448eccdb75ea1fa733d9e821c920"
@@ -12926,6 +12926,22 @@ trim-off-newlines@^1.0.0:
   resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
   integrity sha1-n5up2e+odkw4dpi8v+sshI8RrbM=
 
+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 "^26.1.0"
+    json5 "2.x"
+    lodash "4.x"
+    make-error "1.x"
+    mkdirp "1.x"
+    semver "7.x"
+    yargs-parser "20.x"
+
 ts-jest@26.x:
   version "26.3.0"
   resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.3.0.tgz#6b2845045347dce394f069bb59358253bc1338a9"
@@ -13761,6 +13777,11 @@ yargs-parser@18.x, yargs-parser@^18.1.2, yargs-parser@^18.1.3:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+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@^13.1.2:
   version "13.1.2"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"