diff --git a/extension/package.json b/extension/package.json
index addd28d8..7bcb0109 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -75,6 +75,7 @@
     "file-loader": "^6.2.0",
     "fork-ts-checker-webpack-plugin": "^6.3.3",
     "gitbook-cli": "^2.3.2",
+    "jest": "^27.2.0",
     "path-browserify": "^1.0.1",
     "pug-html-loader": "^1.1.5",
     "raw-loader": "^4.0.2",
@@ -84,6 +85,7 @@
     "selenium-webdriver": "^3.6.0",
     "sinon-chrome": "^3.0.1",
     "style-loader": "^3.2.1",
+    "ts-jest": "^27.0.5",
     "typescript": "~4.3.5",
     "webpack": "^5.52.1",
     "webpack-cli": "^4.8.0"
diff --git a/yarn.lock b/yarn.lock
index 47b6b961..825bac8b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -25613,6 +25613,7 @@ fsevents@^1.2.7:
     file-loader: ^6.2.0
     fork-ts-checker-webpack-plugin: ^6.3.3
     gitbook-cli: ^2.3.2
+    jest: ^27.2.0
     jsan: ^3.1.13
     localforage: ^1.10.0
     lodash: ^4.17.21
@@ -25632,6 +25633,7 @@ fsevents@^1.2.7:
     selenium-webdriver: ^3.6.0
     sinon-chrome: ^3.0.1
     style-loader: ^3.2.1
+    ts-jest: ^27.0.5
     typescript: ~4.3.5
     webpack: ^5.52.1
     webpack-cli: ^4.8.0