diff --git a/package.json b/package.json
index b6ca3ad8..fff86e64 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   },
   "devDependencies": {
     "@types/css": "0.0.33",
-    "@types/firefox-webext-browser": "^82.0.1",
+    "@types/firefox-webext-browser": "^94.0.1",
     "@types/jest": "^27.4.0",
     "@types/nearley": "^2.11.2",
     "@types/selenium-webdriver": "^4.0.16",
diff --git a/yarn.lock b/yarn.lock
index 2b6afcb7..871cb5a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -727,10 +727,10 @@
   resolved "https://registry.yarnpkg.com/@types/css/-/css-0.0.33.tgz#d0b49c4090c09c8e5dc01364560627e5ebb770f2"
   integrity sha512-qjeDgh86R0LIeEM588q65yatc8Yyo/VvSIYFqq8JOIHDolhGNX0rz7k/OuxqDpnpqlefoHj8X4Ai/6hT9IWtKQ==
 
-"@types/firefox-webext-browser@^82.0.1":
-  version "82.0.1"
-  resolved "https://registry.yarnpkg.com/@types/firefox-webext-browser/-/firefox-webext-browser-82.0.1.tgz#197dec1d175b099eb8dac92e9c9c9a5482a5dd8a"
-  integrity sha512-odcPKiJ34N8k53clIWen3hLvl09ja7SQ9NqtUbgmqeJ/a/ZRQiF665iXSFPcnl6cBn2XQgEg2lsUUApYNiyj+g==
+"@types/firefox-webext-browser@^94.0.1":
+  version "94.0.1"
+  resolved "https://registry.yarnpkg.com/@types/firefox-webext-browser/-/firefox-webext-browser-94.0.1.tgz#52afb975253dc0fd350d5d58c7fe9fd1a01f64a1"
+  integrity sha512-I6iHRQJSTZ+gYt2IxdH2RRAMvcUyK8v5Ig7fHQR0IwUNYP7hz9+cziBVIKxLCO6XI7fiyRsNOWObfl3/4Js2Lg==
 
 "@types/graceful-fs@^4.1.2":
   version "4.1.3"