diff --git a/package.json b/package.json
index 4de48e9..2b73b44 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "base58check": "^2.0.0",
     "bech32": "^1.1.3",
     "bs58": "^4.0.1",
-    "content-hash": "^2.4.1",
+    "content-hash": "^2.4.4",
     "cross-fetch": "^3.0.2",
     "eth-ens-namehash": "^2.0.8",
     "ethers": "4.0.36",
diff --git a/src/utils/contents.js b/src/utils/contents.js
index 81a6604..01e7e22 100644
--- a/src/utils/contents.js
+++ b/src/utils/contents.js
@@ -1,7 +1,7 @@
 import contentHash from 'content-hash'
 import { utils } from 'ethers'
 
-const supportedCodecs = ['ipfs-ns', 'swarm-ns', 'onion', 'onion3']
+const supportedCodecs = ['ipfs-ns', 'swarm-ns', 'onion', 'onion3', 'zeronet']
 
 export function decodeContenthash(encoded) {
   let decoded, protocolType, error
@@ -20,6 +20,8 @@ export function decodeContenthash(encoded) {
         protocolType = 'onion'
       } else if (codec === 'onion3') {
         protocolType = 'onion3'
+      } else if (codec === 'zeronet') {
+        protocolType = 'zeronet'
       } else {
         decoded = encoded
       }
@@ -47,7 +49,7 @@ export function encodeContenthash(text) {
   let content, contentType
   let encoded = false
   if (!!text) {
-    let matched = text.match(/^(ipfs|bzz|onion|onion3):\/\/(.*)/) || text.match(/\/(ipfs)\/(.*)/)
+    let matched = text.match(/^(ipfs|bzz|onion|onion3|zeronet):\/\/(.*)/) || text.match(/\/(ipfs)\/(.*)/)
     if (matched) {
       contentType = matched[1]
       content = matched[2]
@@ -64,12 +66,14 @@ export function encodeContenthash(text) {
         }
       } else if (contentType === 'onion') {
         if(content.length == 16) {
-          encoded = '0x' + contentHash.encode('onion', content);  
+          encoded = '0x' + contentHash.encode('onion', content)
         } 
       } else if (contentType === 'onion3') {
         if(content.length == 56) {
-          encoded = '0x' + contentHash.encode('onion3', content);  
+          encoded = '0x' + contentHash.encode('onion3', content)
         }
+      } else if (contentType === 'zeronet') {
+        encoded = '0x' + contentHash.encode('zeronet', content)
       } else {
         console.warn('Unsupported protocol or invalid value', {
           contentType,
diff --git a/src/utils/contents.test.js b/src/utils/contents.test.js
index 38ada4b..92a56f8 100644
--- a/src/utils/contents.test.js
+++ b/src/utils/contents.test.js
@@ -51,6 +51,16 @@ describe('test contenthash utility functions for swarm', () => {
         '0xbd037035336c663537716f7679757677736336786e72707079706c79337674716d376c3670636f626b6d797173696f6679657a6e667535757164'
       )
     })
+
+    test('encodeContentHash returns encoded hash for zeronet protocol', () => {
+      const encodedContentHash = encodeContenthash(
+        'zeronet://1HeLLo4uzjaLetFx6NH3PMwFP3qbRbTf3D'
+      )
+
+      expect(encodedContentHash).toBe(
+        '0xe6013148654c4c6f34757a6a614c65744678364e4833504d774650337162526254663344'
+      )
+    })
   })
 
   describe('decodeContentHash', () => {
@@ -99,6 +109,16 @@ describe('test contenthash utility functions for swarm', () => {
       expect(decoded.protocolType).toBe('onion3')
       expect(decoded.error).toBe(undefined)
     })
+
+    test('decodeContentHash returns decoded contenthash for zeronet protocol', () => {
+      const decoded = decodeContenthash(
+        '0xe6013148654c4c6f34757a6a614c65744678364e4833504d774650337162526254663344'
+      )
+
+      expect(decoded.decoded).toBe('1HeLLo4uzjaLetFx6NH3PMwFP3qbRbTf3D')
+      expect(decoded.protocolType).toBe('zeronet')
+      expect(decoded.error).toBe(undefined)
+    })
   })
 
   describe('isValidContent', () => {
@@ -132,6 +152,14 @@ describe('test contenthash utility functions for swarm', () => {
       expect(valid).toBe(true)
     })
 
+    test('isValidContent returns true for real contenthash for zeronet protocol', () => {
+      const valid = isValidContenthash(
+        '0xe6013148654c4c6f34757a6a614c65744678364e4833504d774650337162526254663344'
+      )
+
+      expect(valid).toBe(true)
+    })
+
     test('isValidContent returns false for non hex', () => {
       const valid = isValidContenthash(
         '0xe40101fa011b20d1de9994b4d039f6548d191eb26786769f580809256b4685ef31680z'
diff --git a/src/utils/records.js b/src/utils/records.js
index 1c0bc08..c00e756 100644
--- a/src/utils/records.js
+++ b/src/utils/records.js
@@ -27,7 +27,7 @@ export function getPlaceholder(recordType, contentType) {
       return 'Enter an Ethereum address'
     case 'content':
       if (contentType === 'contenthash') {
-        return 'Enter a content hash (eg: ipfs://..., bzz://..., onion://..., onion3://...)'
+        return 'Enter a content hash (eg: ipfs://..., bzz://..., onion://..., onion3://..., zeronet://...)'
       } else {
         return 'Enter a content'
       }
diff --git a/yarn.lock b/yarn.lock
index ae89b04..a847262 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2783,13 +2783,13 @@ content-disposition@0.5.2:
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
   integrity sha1-DPaLud318r55YcOoUXjLhdunjLQ=
 
-content-hash@^2.4.1:
-  version "2.4.3"
-  resolved "https://registry.yarnpkg.com/content-hash/-/content-hash-2.4.3.tgz#89e6d295bbf2c53fb69b3d8fb43ae572ac7b6096"
-  integrity sha512-QBfQRlBBCJP94fV8zcUMChGMKzQMAZX6rn36yldc2A16C47tWdOTYjPosyZ7/AfdyW/xB5cP3RgZIAomnUDGIA==
+content-hash@^2.4.4:
+  version "2.4.4"
+  resolved "https://registry.yarnpkg.com/content-hash/-/content-hash-2.4.4.tgz#4bec87caecfcff8cf1a37645301cbef4728a083f"
+  integrity sha512-3FaUsqt7VR725pVxe0vIScGI5efmpryIXdVSeXafQ63fb5gRGparAQlAGxTSOiv0yRg7YeliseXuB20ByD1duQ==
   dependencies:
     cids "^0.6.0"
-    multicodec "^0.5.4"
+    multicodec "^0.5.5"
     multihashes "^0.4.15"
 
 content-type@~1.0.4:
@@ -6344,10 +6344,10 @@ multibase@~0.6.0:
   dependencies:
     base-x "3.0.4"
 
-multicodec@^0.5.4:
-  version "0.5.4"
-  resolved "https://registry.yarnpkg.com/multicodec/-/multicodec-0.5.4.tgz#ab2afb0cd00cd853c5a2eecb0dd1404dc7745388"
-  integrity sha512-0lPLiZ58b2jyXylx2qgda9/6N0YCNIpBxRsZ8sxYayVjEKh58XyNN74VTTQOR/ZCQFgbj0CsqfyRpEDPPlOMkw==
+multicodec@^0.5.5:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/multicodec/-/multicodec-0.5.5.tgz#55c2535b44eca9ea40a13771420153fe075bb36d"
+  integrity sha512-1kOifvwAqp9IdiiTKmpK2tS+LY6GHZdKpk3S2EvW4T32vlwDyA3hJoZtGauzqdedUPVNGChnTksEotVOCVlC+Q==
   dependencies:
     varint "^5.0.0"