diff --git a/package-lock.json b/package-lock.json
index 74f4378..588c2e4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "ip-regex": "^4.3.0",
         "ipaddr.js": "^2.0.1",
-        "is-ip": "^3.1.0",
+        "is-ip": "^4.0.0",
         "netmask": "^2.0.2"
       },
       "devDependencies": {
@@ -1065,14 +1065,28 @@
       }
     },
     "node_modules/is-ip": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/is-ip/-/is-ip-3.1.0.tgz",
-      "integrity": "sha512-35vd5necO7IitFPjd/YBeqwWnyDWbuLH9ZXQdMfDA8TEo7pv5X8yfrvVO3xbJbLUlERCMvf6X0hTUamQxCYJ9Q==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/is-ip/-/is-ip-4.0.0.tgz",
+      "integrity": "sha512-4B4XA2HEIm/PY+OSpeMBXr8pGWBYbXuHgjMAqrwbLO3CPTCAd9ArEJzBUKGZtk9viY6+aSfadGnWyjY3ydYZkw==",
       "dependencies": {
-        "ip-regex": "^4.0.0"
+        "ip-regex": "^5.0.0"
       },
       "engines": {
-        "node": ">=8"
+        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/is-ip/node_modules/ip-regex": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/ip-regex/-/ip-regex-5.0.0.tgz",
+      "integrity": "sha512-fOCG6lhoKKakwv+C6KdsOnGvgXnmgfmp0myi3bcNwj3qfwPAxRKWEuFhvEFF7ceYIz6+1jRZ+yguLFAmUNPEfw==",
+      "engines": {
+        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/is-number": {
@@ -2785,11 +2799,18 @@
       }
     },
     "is-ip": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/is-ip/-/is-ip-3.1.0.tgz",
-      "integrity": "sha512-35vd5necO7IitFPjd/YBeqwWnyDWbuLH9ZXQdMfDA8TEo7pv5X8yfrvVO3xbJbLUlERCMvf6X0hTUamQxCYJ9Q==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/is-ip/-/is-ip-4.0.0.tgz",
+      "integrity": "sha512-4B4XA2HEIm/PY+OSpeMBXr8pGWBYbXuHgjMAqrwbLO3CPTCAd9ArEJzBUKGZtk9viY6+aSfadGnWyjY3ydYZkw==",
       "requires": {
-        "ip-regex": "^4.0.0"
+        "ip-regex": "^5.0.0"
+      },
+      "dependencies": {
+        "ip-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ip-regex/-/ip-regex-5.0.0.tgz",
+          "integrity": "sha512-fOCG6lhoKKakwv+C6KdsOnGvgXnmgfmp0myi3bcNwj3qfwPAxRKWEuFhvEFF7ceYIz6+1jRZ+yguLFAmUNPEfw=="
+        }
       }
     },
     "is-number": {
diff --git a/package.json b/package.json
index b2bbede..b33ef6a 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
   "dependencies": {
     "ip-regex": "^4.3.0",
     "ipaddr.js": "^2.0.1",
-    "is-ip": "^3.1.0",
+    "is-ip": "^4.0.0",
     "netmask": "^2.0.2"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index 2a29061..bd99af0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,6 @@
 import { Netmask } from 'netmask'
 import ip_regex from 'ip-regex'
-import is_ip from 'is-ip'
+import { isIP } from 'is-ip'
 import { isValid as is_valid, parse, IPv4 } from 'ipaddr.js'
 
 const PRIVATE_IP_RANGES = [
@@ -62,7 +62,7 @@ export default (ip: string) => {
 
     if (parsed.kind() === 'ipv4') return ipv4_check((parsed as IPv4).toNormalizedString())
     else if (parsed.kind() === 'ipv6') return ipv6_check(ip)
-  } else if (is_ip(ip) && ip_regex.v6().test(ip)) return ipv6_check(ip)
+  } else if (isIP(ip) && ip_regex.v6().test(ip)) return ipv6_check(ip)
 
   return undefined
 }
diff --git a/yarn.lock b/yarn.lock
index 2635e6c..6c5105b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -554,11 +554,16 @@
   "resolved" "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz"
   "version" "2.0.4"
 
-"ip-regex@^4.0.0", "ip-regex@^4.3.0":
+"ip-regex@^4.3.0":
   "integrity" "sha512-B9ZWJxHHOHUhUjCPrMpLD4xEq35bUTClHM1S6CBU5ixQnkZmwipwgc96vAd7AAGM9TGHvJR+Uss+/Ak6UphK+Q=="
   "resolved" "https://registry.npmjs.org/ip-regex/-/ip-regex-4.3.0.tgz"
   "version" "4.3.0"
 
+"ip-regex@^5.0.0":
+  "integrity" "sha512-fOCG6lhoKKakwv+C6KdsOnGvgXnmgfmp0myi3bcNwj3qfwPAxRKWEuFhvEFF7ceYIz6+1jRZ+yguLFAmUNPEfw=="
+  "resolved" "https://registry.npmjs.org/ip-regex/-/ip-regex-5.0.0.tgz"
+  "version" "5.0.0"
+
 "ipaddr.js@^2.0.1":
   "integrity" "sha512-1qTgH9NG+IIJ4yfKs2e6Pp1bZg8wbDbKHT21HrLIeYBTRLgMYKnMTPAuI3Lcs61nfx5h1xlXnbJtH1kX5/d/ng=="
   "resolved" "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-2.0.1.tgz"
@@ -603,12 +608,12 @@
   dependencies:
     "is-extglob" "^2.1.1"
 
-"is-ip@^3.1.0":
-  "integrity" "sha512-35vd5necO7IitFPjd/YBeqwWnyDWbuLH9ZXQdMfDA8TEo7pv5X8yfrvVO3xbJbLUlERCMvf6X0hTUamQxCYJ9Q=="
-  "resolved" "https://registry.npmjs.org/is-ip/-/is-ip-3.1.0.tgz"
-  "version" "3.1.0"
+"is-ip@^4.0.0":
+  "integrity" "sha512-4B4XA2HEIm/PY+OSpeMBXr8pGWBYbXuHgjMAqrwbLO3CPTCAd9ArEJzBUKGZtk9viY6+aSfadGnWyjY3ydYZkw=="
+  "resolved" "https://registry.npmjs.org/is-ip/-/is-ip-4.0.0.tgz"
+  "version" "4.0.0"
   dependencies:
-    "ip-regex" "^4.0.0"
+    "ip-regex" "^5.0.0"
 
 "is-number@^7.0.0":
   "integrity" "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="