diff --git a/package-lock.json b/package-lock.json
index 8824165..f78c632 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6684,9 +6684,9 @@
       "integrity": "sha1-nbHb0Pr43m++D13V5Wu2BigN5ps="
     },
     "immer": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/immer/-/immer-3.1.2.tgz",
-      "integrity": "sha512-pi8JuvJ9c+98DlpDms/o0YLLg5khP8Qzjd8CtIGc4qVm2eoLdQGivJL266nWccofKT/oBSxnhAh/o+nmOXtLXw=="
+      "version": "9.0.6",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.6.tgz",
+      "integrity": "sha512-G95ivKpy+EvVAnAab4fVa4YGYn24J1SpEktnJX7JJ45Bd7xqME/SCplFzYFmTbrkwZbQ4xJK1xMTUYBkN6pWsQ=="
     },
     "import-cwd": {
       "version": "2.1.0",
diff --git a/package.json b/package.json
index b79321a..1c376b2 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "klu",
   "version": "2.0.0",
   "dependencies": {
-    "immer": "^3.1.1",
+    "immer": "^9.0.0",
     "js-worker-search": "1.4.0",
     "localforage": "1.7.3",
     "lodash.debounce": "4.0.8",