diff --git a/package-lock.json b/package-lock.json
index f79ec1f0..f2dab087 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17432,9 +17432,9 @@
       }
     },
     "immer": {
-      "version": "9.0.1",
-      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.1.tgz",
-      "integrity": "sha512-7CCw1DSgr8kKYXTYOI1qMM/f5qxT5vIVMeGLDCDX8CSxsggr1Sjdoha4OhsP0AZ1UvWbyZlILHvLjaynuu02Mg=="
+      "version": "9.0.21",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.21.tgz",
+      "integrity": "sha512-bc4NBHqOqSfRW7POMkHd51LvClaeMXpm8dx0e8oE2GORbq5aRK7Bxl4FyzVLdGtLmvLKL7BTDBG5ACQm4HWjTA=="
     },
     "import-cwd": {
       "version": "2.1.0",
diff --git a/package.json b/package.json
index 432b2752..cbf459d0 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
     "bytes": "3.1.0",
     "d3-array": "2.12.1",
     "html-minifier-terser": "5.1.1",
-    "immer": "9.0.1",
+    "immer": "9.0.21",
     "lodash.debounce": "4.0.8",
     "preact": "10.5.13",
     "react-ga": "3.3.0",