diff --git a/package.json b/package.json
index 0d6fde8b51..17d7508db0 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "cable_ready": "^5.0.0-pre2",
     "flatpickr": "^4.6.9",
     "moment": "^2.29.1",
-    "mrujs": "^0.5.5",
+    "mrujs": "^0.5.9",
     "shortcut-buttons-flatpickr": "^0.3.1",
     "stimulus": "^2.0.0",
     "webpack": "~4",
diff --git a/yarn.lock b/yarn.lock
index f9d2a969a3..abf124e04c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8820,10 +8820,10 @@ move-concurrently@^1.0.1:
     rimraf "^2.5.4"
     run-queue "^1.0.3"
 
-mrujs@^0.5.5:
-  version "0.5.5"
-  resolved "https://registry.yarnpkg.com/mrujs/-/mrujs-0.5.5.tgz#cc3d8eee60621399c962d50ffd0004fcb3a0be4b"
-  integrity sha512-qcI1bVQKYCpNQIeNiI7SbrDXaGoj0lMb60X/6yANZrF8HFBkifkGZYcIgKn/2BYn99rRKZzNjaOQx2CjhIiYCw==
+mrujs@^0.5.9:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/mrujs/-/mrujs-0.5.9.tgz#8c79e8f808d5fda2e7db99913e9ac50a3986dca5"
+  integrity sha512-rxtFsHjw/7gTzKA5S2Hwq7TjJPd+XmHRsoH4vkP4cyvWsapdkUtXWLmQ1n7pWMB/7oUAr6LAn1L2aJUcVLwmGQ==
   dependencies:
     morphdom ">=2.6.0 <3.0.0"