diff --git a/package.json b/package.json
index ad1c798f3e..13cb8e304f 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "hastscript": "^9.0.0",
     "i18next": "^25.0.0",
     "i18next-browser-languagedetector": "^8.0.0",
-    "immer": "^9.0.21",
+    "immer": "^11.0.0",
     "java-slang": "^1.0.13",
     "js-cookie": "^3.0.5",
     "js-slang": "^1.0.85",
diff --git a/yarn.lock b/yarn.lock
index 38a7f4e72f..81b7a5a908 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7732,7 +7732,7 @@ __metadata:
     i18next: "npm:^25.0.0"
     i18next-browser-languagedetector: "npm:^8.0.0"
     identity-obj-proxy: "npm:^3.0.0"
-    immer: "npm:^9.0.21"
+    immer: "npm:^11.0.0"
     java-slang: "npm:^1.0.13"
     js-cookie: "npm:^3.0.5"
     js-slang: "npm:^1.0.85"
@@ -8430,6 +8430,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"immer@npm:^11.0.0":
+  version: 11.1.0
+  resolution: "immer@npm:11.1.0"
+  checksum: 10c0/cc1f14037534802a662f0113d80b4695685d789b84ab4a56a241a384df32f57f12332d1643fa3b3cc7a2504b076efb07aead08732796c8e019569d95b8b7f1cd
+  languageName: node
+  linkType: hard
+
 "immer@npm:^9.0.21":
   version: 9.0.21
   resolution: "immer@npm:9.0.21"