diff --git a/package-lock.json b/package-lock.json
index f04025b..4638e58 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10684,9 +10684,9 @@
       "dev": true
     },
     "immer": {
-      "version": "6.0.9",
-      "resolved": "https://registry.npmjs.org/immer/-/immer-6.0.9.tgz",
-      "integrity": "sha512-SyCYnAuiRf67Lvk0VkwFvwtDoEiCMjeamnHvRfnVDyc7re1/rQrNxuL+jJ7lA3WvdC4uznrvbmm+clJ9+XXatg==",
+      "version": "9.0.6",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.6.tgz",
+      "integrity": "sha512-G95ivKpy+EvVAnAab4fVa4YGYn24J1SpEktnJX7JJ45Bd7xqME/SCplFzYFmTbrkwZbQ4xJK1xMTUYBkN6pWsQ==",
       "dev": true
     },
     "import-cwd": {
diff --git a/package.json b/package.json
index 6480b24..ad2cb12 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   },
   "homepage": "https://github.com/sable-virt/fluent-reducer#readme",
   "peerDependencies": {
-    "immer": "^6.0.9",
+    "immer": "^9.0.6",
     "react": "^16.13.1"
   },
   "devDependencies": {
@@ -51,7 +51,7 @@
     "@types/react": "^16.9.35",
     "babel-loader": "^8.1.0",
     "clean-webpack-plugin": "^3.0.0",
-    "immer": "^6.0.9",
+    "immer": "^9.0.6",
     "jest": "^26.0.1",
     "loglevel": "^1.6.8",
     "react-docgen-typescript-loader": "^3.7.2",