diff --git a/package.json b/package.json
index d9e2e0b..fe6fa30 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "date-fns": "^2.11.0",
     "fathom-client": "^3.0.0",
     "firebase": "^7.10.0",
-    "immer": "^6.0.2",
+    "immer": "^9.0.6",
     "jest": "^25.2.4",
     "localforage": "^1.9.0",
     "lodash": "^4.17.21",
diff --git a/yarn.lock b/yarn.lock
index 2617294..94e83a8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5806,10 +5806,10 @@ immediate@~3.0.5:
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
   integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
 
-immer@^6.0.2:
-  version "6.0.3"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-6.0.3.tgz#94d5051cd724668160a900d66d85ec02816f29bd"
-  integrity sha512-12VvNrfSrXZdm/BJgi/KDW2soq5freVSf3I1+4CLunUM8mAGx2/0Njy0xBVzi5zewQZiwM7z1/1T+8VaI7NkmQ==
+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@^3.1.0:
   version "3.2.1"