diff --git a/package-lock.json b/package-lock.json
index 36213c6a..2a7afba5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "slack-emoji-meister",
       "version": "0.3.3",
       "dependencies": {
-        "@types/firefox-webext-browser": "109.0.0",
+        "@types/firefox-webext-browser": "120.0.4",
         "@typescript-eslint/eslint-plugin": "5.51.0",
         "@typescript-eslint/parser": "5.51.0",
         "chrome-webstore-upload": "1.0.0",
@@ -2043,9 +2043,9 @@
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     },
     "node_modules/@types/firefox-webext-browser": {
-      "version": "109.0.0",
-      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-109.0.0.tgz",
-      "integrity": "sha512-tkEjBP/zZxaS5bv8MH/0kUs3WeUm8KU3Ew1B9BtQQdq5PwtG23SXvAbjxjMSQpoIzbxyWG4Yu4mi1uB2S8W7ng=="
+      "version": "120.0.4",
+      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-120.0.4.tgz",
+      "integrity": "sha512-lBrpf08xhiZBigrtdQfUaqX1UauwZ+skbFiL8u2Tdra/rklkKadYmIzTwkNZSWtuZ7OKpFqbE2HHfDoFqvZf6w=="
     },
     "node_modules/@types/glob": {
       "version": "7.2.0",
@@ -10567,9 +10567,9 @@
       "integrity": "sha512-C6N5s2ZFtuZRj54k2/zyRhNDjJwwcViAM3Nbm8zjBpbqAdZ00mr0CFxvSKeO8Y/e03WVFLpQMdHYVfUd6SB+Hw=="
     },
     "@types/firefox-webext-browser": {
-      "version": "109.0.0",
-      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-109.0.0.tgz",
-      "integrity": "sha512-tkEjBP/zZxaS5bv8MH/0kUs3WeUm8KU3Ew1B9BtQQdq5PwtG23SXvAbjxjMSQpoIzbxyWG4Yu4mi1uB2S8W7ng=="
+      "version": "120.0.4",
+      "resolved": "https://registry.npmjs.org/@types/firefox-webext-browser/-/firefox-webext-browser-120.0.4.tgz",
+      "integrity": "sha512-lBrpf08xhiZBigrtdQfUaqX1UauwZ+skbFiL8u2Tdra/rklkKadYmIzTwkNZSWtuZ7OKpFqbE2HHfDoFqvZf6w=="
     },
     "@types/glob": {
       "version": "7.2.0",
diff --git a/package.json b/package.json
index 9115d2d3..74ecf375 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "typescript": "4.9.5"
   },
   "dependencies": {
-    "@types/firefox-webext-browser": "109.0.0",
+    "@types/firefox-webext-browser": "120.0.4",
     "@typescript-eslint/eslint-plugin": "5.51.0",
     "@typescript-eslint/parser": "5.51.0",
     "chrome-webstore-upload": "1.0.0",