diff --git a/package-lock.json b/package-lock.json
index 77aaff8fe..0f7116e34 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2106,6 +2106,13 @@
         "@octokit/types": "^5.0.0",
         "is-plain-object": "^4.0.0",
         "universal-user-agent": "^6.0.0"
+      },
+      "dependencies": {
+        "is-plain-object": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-4.1.1.tgz",
+          "integrity": "sha512-5Aw8LLVsDlZsETVMhoMXzqsXwQqr/0vlnBYzIXJbYo2F4yYlhLHs+Ez7Bod7IIQKWkJbJfxrWD7pA1Dw1TKrwA=="
+        }
       }
     },
     "@octokit/graphql": {
@@ -6515,9 +6522,9 @@
       "dev": true
     },
     "is-plain-object": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-4.1.1.tgz",
-      "integrity": "sha512-5Aw8LLVsDlZsETVMhoMXzqsXwQqr/0vlnBYzIXJbYo2F4yYlhLHs+Ez7Bod7IIQKWkJbJfxrWD7pA1Dw1TKrwA=="
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz",
+      "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q=="
     },
     "is-potential-custom-element-name": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 05a85f7ce..6b155750f 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "@octokit/request-error": "^2.0.0",
     "@octokit/types": "^5.0.0",
     "deprecation": "^2.0.0",
-    "is-plain-object": "^4.0.0",
+    "is-plain-object": "^5.0.0",
     "node-fetch": "^2.3.0",
     "once": "^1.4.0",
     "universal-user-agent": "^6.0.0"
diff --git a/src/fetch-wrapper.ts b/src/fetch-wrapper.ts
index fbc370ebe..6af506871 100644
--- a/src/fetch-wrapper.ts
+++ b/src/fetch-wrapper.ts
@@ -1,4 +1,4 @@
-import isPlainObject from "is-plain-object";
+import { isPlainObject } from "is-plain-object";
 import nodeFetch, { HeadersInit } from "node-fetch";
 import { RequestError } from "@octokit/request-error";
 import { EndpointInterface } from "@octokit/types";