diff --git a/packages/rich-text-types/package.json b/packages/rich-text-types/package.json
index 4676fedb..5760bb69 100644
--- a/packages/rich-text-types/package.json
+++ b/packages/rich-text-types/package.json
@@ -25,7 +25,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "is-plain-obj": "^3.0.0"
+    "is-plain-obj": "^4.1.0"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",
diff --git a/yarn.lock b/yarn.lock
index 54f03488..a7f5f5da 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4816,10 +4816,10 @@ is-plain-obj@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-2.1.0.tgz#45e42e37fccf1f40da8e5f76ee21515840c09287"
   integrity sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==
 
-is-plain-obj@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-3.0.0.tgz#af6f2ea14ac5a646183a5bbdb5baabbc156ad9d7"
-  integrity sha512-gwsOE28k+23GP1B6vFl1oVh/WOzmawBrKwo5Ev6wMKzPkaXaCDIQKzLnvsA42DRlbVTWorkgTKIviAKCWkfUwA==
+is-plain-obj@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-4.1.0.tgz#d65025edec3657ce032fd7db63c97883eaed71f0"
+  integrity sha512-+Pgi+vMuUNkJyExiMBt5IlFoMyKnr5zhJ4Uspz58WOhBF5QoIZkFyNHIbBAtHwzVAgk5RtndVNsDRN61/mmDqg==
 
 is-plain-object@^2.0.4:
   version "2.0.4"