diff --git a/package.json b/package.json
index 33af6a1..a3bdc1e 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@types/react-router-dom": "^5.1.2",
     "@types/reactcss": "^1.2.3",
     "@use-hook/use-cookie": "^0.1.4",
-    "immer": "^5.0.0",
+    "immer": "^9.0.6",
     "pixi.js": "^5.2.0",
     "qrcode.react": "^1.0.0",
     "react": "^16.12.0",
diff --git a/yarn.lock b/yarn.lock
index 69feb7b..5d50f40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5643,10 +5643,10 @@ immer@1.10.0:
   resolved "https://registry.yarnpkg.com/immer/-/immer-1.10.0.tgz#bad67605ba9c810275d91e1c2a47d4582e98286d"
   integrity sha512-O3sR1/opvCDGLEVcvrGTMtLac8GJ5IwZC4puPrLuRj3l7ICKvkmA0vGuU9OW8mV9WIBRnaxp5GJh9IEAaNOoYg==
 
-immer@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-5.0.0.tgz#07f462b7d95f7e86c214a861ecacd766d42b8c0a"
-  integrity sha512-G7gRqKbi9NE025XVyqyTV98dxUOtdKvu/P1QRaVZfA55aEcXgjbxPdm+TlWdcSMNPKijlaHNz61DGPyelouRlA==
+immer@^9.0.6:
+  version "9.0.6"
+  resolved "https://registry.yarnpkg.com/immer/-/immer-9.0.6.tgz#7a96bf2674d06c8143e327cbf73539388ddf1a73"
+  integrity sha512-G95ivKpy+EvVAnAab4fVa4YGYn24J1SpEktnJX7JJ45Bd7xqME/SCplFzYFmTbrkwZbQ4xJK1xMTUYBkN6pWsQ==
 
 import-cwd@^2.0.0:
   version "2.1.0"