diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b244f1c..b925cca 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,6 +16,7 @@ jobs:
         env:
           NOSTR_RELAYS: ${{ vars.NOSTR_RELAYS_TEST }}
           NOSTR_PRIVATE_KEY: ${{ secrets.NOSTR_PRIVATE_KEY_TEST }}
+          NOSTR_SECKEY: ${{ secrets.NOSTR_SECKEY_TEST }}
 
   e2e-test:
     runs-on: ubuntu-latest
diff --git a/nostr.js b/nostr.js
index c8a7732..3b6eda6 100644
--- a/nostr.js
+++ b/nostr.js
@@ -1,6 +1,7 @@
 const WebSocket = require('ws');
 const { nip19, getPublicKey, finalizeEvent } = require('nostr-tools');
 const { useWebSocketImplementation } = require('nostr-tools/pool');
+const { hexToBytes } = require('@noble/hashes/utils');
 
 useWebSocketImplementation(WebSocket);
 
@@ -11,7 +12,7 @@ useWebSocketImplementation(WebSocket);
  * @param {string[][]} tags
  */
 module.exports.createEvent = (privateKey, kind, content, tags) => {
-  const seckey = privateKey.startsWith('nsec') ? nip19.decode(privateKey).data : Uint8Array.from(Buffer.from(privateKey));
+  const seckey = privateKey.startsWith('nsec') ? nip19.decode(privateKey).data : hexToBytes(privateKey);
 
   const createdAt = Math.round(Date.now() / 1000);
   let event = {
diff --git a/nostr.test.js b/nostr.test.js
index fb096e1..6dd1490 100644
--- a/nostr.test.js
+++ b/nostr.test.js
@@ -1,7 +1,7 @@
 const { createEvent, publishEvent } = require('./nostr');
 require('dotenv').config();
 
-test('createEvent', async () => {
+test('createEvent with nsec', async () => {
   const privateKey = process.env.NOSTR_PRIVATE_KEY;
   const content = 'test';
   const kind = 1;
@@ -17,6 +17,22 @@ test('createEvent', async () => {
   expect(event.content).toBe(content);
 });
 
+test('createEvent with seckey', async () => {
+  const privateKey = process.env.NOSTR_SECKEY;
+  const content = 'test';
+  const kind = 1;
+  const tags = [];
+  const event = createEvent(privateKey, kind, content, tags);
+  expect(event).toHaveProperty('id');
+  expect(event).toHaveProperty('pubkey');
+  expect(event).toHaveProperty('created_at');
+  expect(event).toHaveProperty('kind');
+  expect(event).toHaveProperty('tags');
+  expect(event).toHaveProperty('content');
+  expect(event).toHaveProperty('sig');
+  expect(event.content).toBe(content);
+});
+
 test('publishEvent', async () => {
   const relays = process.env.NOSTR_RELAYS.split("\n").map(x => x.trim()).filter(x => x.startsWith('wss://'));
   const privateKey = process.env.NOSTR_PRIVATE_KEY;
diff --git a/package-lock.json b/package-lock.json
index ee28e1b..8613a7f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.10.0",
+        "@noble/hashes": "^1.6.1",
         "js-yaml": "^4.1.0",
         "nostr-tools": "^2.10.4",
         "ws": "^8.16.0"
@@ -1265,7 +1266,7 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
-    "node_modules/@noble/hashes": {
+    "node_modules/@noble/curves/node_modules/@noble/hashes": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.1.tgz",
       "integrity": "sha512-EbqwksQwz9xDRGfDST86whPBgM65E0OH/pCgqW0GBVzO22bNE+NuIbeTb714+IfSjU3aRk47EUvXIb5bTsenKA==",
@@ -1276,6 +1277,17 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/@noble/hashes": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.6.1.tgz",
+      "integrity": "sha512-pq5D8h10hHBjyqX+cfBm0i8JUXJ0UhczFc4r74zbuT9XgewFo2E3J1cOaGtdZynILNmQ685YWGzGE1Zv6io50w==",
+      "engines": {
+        "node": "^14.21.3 || >=16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -1335,6 +1347,17 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/@scure/bip32/node_modules/@noble/hashes": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.3.tgz",
+      "integrity": "sha512-V7/fPHgl+jsVPXqqeOzT8egNj2iBIVt+ECeMMG8TdcnTikP3oaBtUVqpT/gYCR68aEBJSF+XbYUxStjbFMqIIA==",
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/@scure/bip39": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.2.1.tgz",
@@ -1347,6 +1370,17 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/@scure/bip39/node_modules/@noble/hashes": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.3.tgz",
+      "integrity": "sha512-V7/fPHgl+jsVPXqqeOzT8egNj2iBIVt+ECeMMG8TdcnTikP3oaBtUVqpT/gYCR68aEBJSF+XbYUxStjbFMqIIA==",
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/@sinclair/typebox": {
       "version": "0.27.8",
       "resolved": "https://registry.npmjs.org/@sinclair/typebox/-/typebox-0.27.8.tgz",
@@ -3739,6 +3773,17 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/nostr-tools/node_modules/@noble/hashes": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.1.tgz",
+      "integrity": "sha512-EbqwksQwz9xDRGfDST86whPBgM65E0OH/pCgqW0GBVzO22bNE+NuIbeTb714+IfSjU3aRk47EUvXIb5bTsenKA==",
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/nostr-wasm": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/nostr-wasm/-/nostr-wasm-0.1.0.tgz",
diff --git a/package.json b/package.json
index 6505580..0fdff33 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
   "homepage": "https://github.com/snow-actions/nostr#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
+    "@noble/hashes": "^1.6.1",
     "js-yaml": "^4.1.0",
     "nostr-tools": "^2.10.4",
     "ws": "^8.16.0"