diff --git a/package.json b/package.json
index 3fa5d725..18b9a03e 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "css": "^2.2.4",
     "flyd": "^0.2.8",
     "fuse.js": "^6.0.0",
-    "immer": "^6.0.8",
+    "immer": "^6.0.9",
     "mark.js": "^8.11.1",
     "mithril": "^2.0.4",
     "ramda": "^0.27.0",
diff --git a/yarn.lock b/yarn.lock
index 38d83119..954a0ea3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4209,10 +4209,10 @@ immediate@~3.0.5:
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
   integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
 
-immer@^6.0.8:
-  version "6.0.8"
-  resolved "https://registry.yarnpkg.com/immer/-/immer-6.0.8.tgz#3758890d66ed7baed5703b9e0763785a16156478"
-  integrity sha512-wmVdrkqL6OzhX5z2k/c0t8g+YzGy+V8B/r1GRdCTO0UcTiFkB0XVAxpJQT045KaNV2u14HzbLCYKJmt7yVCakg==
+immer@^6.0.9:
+  version "6.0.9"
+  resolved "https://registry.yarnpkg.com/immer/-/immer-6.0.9.tgz#b9dd69b8e69b3a12391e87db1e3ff535d1b26485"
+  integrity sha512-SyCYnAuiRf67Lvk0VkwFvwtDoEiCMjeamnHvRfnVDyc7re1/rQrNxuL+jJ7lA3WvdC4uznrvbmm+clJ9+XXatg==
 
 immutable@^3.8.2:
   version "3.8.2"