diff --git a/packages/bootstrap/package.json b/packages/bootstrap/package.json
index 996d7ee71..c52a8e319 100644
--- a/packages/bootstrap/package.json
+++ b/packages/bootstrap/package.json
@@ -22,7 +22,7 @@
     "find-up": "^5.0.0",
     "flat": "^5.0.0",
     "hops-debug": "15.0.1",
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "mixinable": "^5.0.1"
   },
   "engines": {
diff --git a/packages/express/package.json b/packages/express/package.json
index f1fca1a19..724222b55 100644
--- a/packages/express/package.json
+++ b/packages/express/package.json
@@ -32,7 +32,7 @@
     "hops-debug": "15.0.1",
     "hops-mixin": "15.0.1",
     "hops-yargs": "15.0.1",
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "mime": "^2.4.4",
     "mixinable": "^5.0.1",
     "morgan": "^1.9.1",
diff --git a/packages/mixin/package.json b/packages/mixin/package.json
index 9c20d09f3..0dedfd16e 100644
--- a/packages/mixin/package.json
+++ b/packages/mixin/package.json
@@ -20,7 +20,7 @@
     "displayName": "unit"
   },
   "dependencies": {
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "mixinable": "^5.0.1"
   },
   "homepage": "https://github.com/xing/hops/tree/master/packages/mixin#readme",
diff --git a/packages/react/package.json b/packages/react/package.json
index 98b42d8ea..4f5aafc9b 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -32,7 +32,7 @@
     "duplitect": "^3.0.0",
     "hops-bootstrap": "15.0.1",
     "hops-mixin": "15.0.1",
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "mixinable": "^5.0.1",
     "pathifist": "^1.0.0",
     "prop-types": "^15.7.2",
diff --git a/packages/webpack/package.json b/packages/webpack/package.json
index ca8d9ffa7..9fd19c744 100644
--- a/packages/webpack/package.json
+++ b/packages/webpack/package.json
@@ -27,7 +27,7 @@
     "hops-express": "15.0.1",
     "hops-mixin": "15.0.1",
     "hops-yargs": "15.0.1",
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "jsesc": "^3.0.0",
     "loader-utils": "^2.0.0",
     "lodash.get": "^4.4.2",
diff --git a/packages/yargs/package.json b/packages/yargs/package.json
index 176b58e76..6976a5eba 100644
--- a/packages/yargs/package.json
+++ b/packages/yargs/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "hops-bootstrap": "15.0.1",
     "hops-mixin": "15.0.1",
-    "is-plain-obj": "^3.0.0",
+    "is-plain-obj": "^4.0.0",
     "mixinable": "^5.0.1",
     "yargs": "^17.0.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 0331652d1..a60a17688 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7516,6 +7516,11 @@ is-plain-obj@^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@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-4.0.0.tgz#06c0999fd7574edf5a906ba5644ad0feb3a84d22"
+  integrity sha512-NXRbBtUdBioI73y/HmOhogw/U5msYPC9DAtGkJXeFcFWSFZw0mCUsPxk/snTuJHzNKA8kLBK4rH97RMB1BfCXw==
+
 is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"