diff --git a/packages/automaton-with-gui/package.json b/packages/automaton-with-gui/package.json
index 0547db1..3f54d6c 100644
--- a/packages/automaton-with-gui/package.json
+++ b/packages/automaton-with-gui/package.json
@@ -63,7 +63,7 @@
     "@types/styled-components": "5.1.4",
     "eslint-plugin-react": "^7.20.6",
     "eslint-plugin-react-hooks": "^4.1.2",
-    "immer": "^7.0.8",
+    "immer": "^9.0.6",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-error-boundary": "^3.1.1",
diff --git a/yarn.lock b/yarn.lock
index b9a63d6..8a4a7c6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5209,10 +5209,10 @@ ignore@^5.1.4:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.8.tgz#f150a8b50a34289b33e22f5889abd4d8016f0e57"
   integrity sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==
 
-immer@^7.0.8:
-  version "7.0.14"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-7.0.14.tgz#3e605f8584b15a9520d2f2f3fda9441cc9170d25"
-  integrity sha512-BxCs6pJwhgSEUEOZjywW7OA8DXVzfHjkBelSEl0A+nEu0+zS4cFVdNOONvt55N4WOm8Pu4xqSPYxhm1Lv2iBBA==
+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-fresh@^2.0.0:
   version "2.0.0"