diff --git a/package.json b/package.json
index 81d12e9c..fec53c1e 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
         "redux-thunk": "^2.3.0",
         "typescript": "~3.9.3",
         "xterm": "^4.6.0",
-        "xterm-addon-fit": "^0.3.0"
+        "xterm-addon-fit": "^0.4.0"
     },
     "scripts": {
         "prepare": "mkdir -p public/static/js && cp node_modules/@pybricks/mpy-cross-v4/build/mpy-cross.wasm public/static/js/",
diff --git a/yarn.lock b/yarn.lock
index a5866572..fac9e814 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11683,10 +11683,10 @@ xtend@^4.0.0, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
-xterm-addon-fit@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/xterm-addon-fit/-/xterm-addon-fit-0.3.0.tgz#341710741027de9d648a9f84415a01ddfdbbe715"
-  integrity sha512-kvkiqHVrnMXgyCH9Xn0BOBJ7XaWC/4BgpSWQy3SueqximgW630t/QOankgqkvk11iTOCwWdAY9DTyQBXUMN3lw==
+xterm-addon-fit@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/xterm-addon-fit/-/xterm-addon-fit-0.4.0.tgz#06e0c5d0a6aaacfb009ef565efa1c81e93d90193"
+  integrity sha512-p4BESuV/g2L6pZzFHpeNLLnep9mp/DkF3qrPglMiucSFtD8iJxtMufEoEJbN8LZwB4i+8PFpFvVuFrGOSpW05w==
 
 xterm@^4.6.0:
   version "4.6.0"