diff --git a/package-lock.json b/package-lock.json
index d048806..c81a0de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
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@@ -64,6 +64,16 @@
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+    "node_modules/@aminya/node-gyp-build": {
+      "version": "4.5.0-aminya.5",
+      "resolved": "https://registry.npmjs.org/@aminya/node-gyp-build/-/node-gyp-build-4.5.0-aminya.5.tgz",
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+      "bin": {
+        "aminya-node-gyp-build": "bin.js",
+        "aminya-node-gyp-build-optional": "optional.js",
+        "aminya-node-gyp-build-test": "build-test.js"
+      }
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+      "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-7.0.3.tgz",
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+        "cross-env-shell": "src/bin/cross-env-shell.js"
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+        "node": ">=10.14",
+        "npm": ">=6",
+        "yarn": ">=1"
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+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-7.1.0.tgz",
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@@ -9743,6 +9755,21 @@
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+      "resolved": "https://registry.npmjs.org/shx/-/shx-0.3.4.tgz",
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+      "dependencies": {
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+        "shelljs": "^0.8.5"
+      },
+      "bin": {
+        "shx": "lib/cli.js"
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+        "node": ">=6"
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@@ -11368,20 +11393,28 @@
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-        "node-gyp-build": "^4.5.0"
+        "@aminya/node-gyp-build": "4.5.0-aminya.5",
+        "cross-env": "^7.0.3",
+        "node-addon-api": "^7.0.0",
+        "shelljs": "^0.8.5",
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-        "node": ">=6.0"
+        "node": ">= 10.2"
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@@ -14672,11 +14705,18 @@
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-      "dev": true,
       "requires": {
         "shebang-regex": "^3.0.0"
       }
@@ -18715,14 +18746,12 @@
     "shebang-regex": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
-      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
-      "dev": true
+      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A=="
     },
     "shelljs": {
       "version": "0.8.5",
       "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.5.tgz",
       "integrity": "sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==",
-      "dev": true,
       "requires": {
         "glob": "^7.0.0",
         "interpret": "^1.0.0",
@@ -18733,7 +18762,6 @@
           "version": "7.2.3",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
           "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==",
-          "dev": true,
           "requires": {
             "fs.realpath": "^1.0.0",
             "inflight": "^1.0.4",
@@ -18745,6 +18773,15 @@
         }
       }
     },
+    "shx": {
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/shx/-/shx-0.3.4.tgz",
+      "integrity": "sha512-N6A9MLVqjxZYcVn8hLmtneQWIJtp8IKzMP4eMnx+nqkvXoqinUPCbUFLp2UcWTEIUONhlk0ewxr/jaVGlc+J+g==",
+      "requires": {
+        "minimist": "^1.2.3",
+        "shelljs": "^0.8.5"
+      }
+    },
     "side-channel": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",
@@ -19077,8 +19114,7 @@
     "supports-preserve-symlinks-flag": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
-      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
-      "dev": true
+      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w=="
     },
     "symbol-observable": {
       "version": "4.0.0",
@@ -19717,7 +19753,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
       "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "devOptional": true,
       "requires": {
         "isexe": "^2.0.0"
       }
@@ -19849,12 +19884,15 @@
       "dev": true
     },
     "zeromq": {
-      "version": "5.3.1",
-      "resolved": "https://registry.npmjs.org/zeromq/-/zeromq-5.3.1.tgz",
-      "integrity": "sha512-4WDF9bNWWXe8OAI319bVw5dmG4BklEk8wzFGwRQxEzKb+0mgDU5J/jtyZPo0BEusVIU1+3mRQIEdT5LtQn+aAw==",
+      "version": "6.0.0-beta.19",
+      "resolved": "https://registry.npmjs.org/zeromq/-/zeromq-6.0.0-beta.19.tgz",
+      "integrity": "sha512-2eU6H7Z4r9LmTkseGdIfEqp0k3rJr5EpXQw2oC0bUqy3wpoj1M83IU/c3qHPXp0z8IklNMoVmVm130d3g2Xf3g==",
       "requires": {
-        "nan": "2.17.0",
-        "node-gyp-build": "^4.5.0"
+        "@aminya/node-gyp-build": "4.5.0-aminya.5",
+        "cross-env": "^7.0.3",
+        "node-addon-api": "^7.0.0",
+        "shelljs": "^0.8.5",
+        "shx": "^0.3.4"
       }
     }
   }
diff --git a/package.json b/package.json
index 0c528c7..acf577c 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "sqlite3": "^5.1.6",
     "tiny-secp256k1": "^2.2.3",
     "typeorm": "^0.3.17",
-    "zeromq": "^5.3.1"
+    "zeromq": "6.0.0-beta.19"
   },
   "devDependencies": {
     "@nestjs/cli": "^9.0.0",
@@ -91,4 +91,4 @@
     "coverageDirectory": "../coverage",
     "testEnvironment": "node"
   }
-}
+}
\ No newline at end of file
diff --git a/src/services/bitcoin-rpc.service.ts b/src/services/bitcoin-rpc.service.ts
index 6c6e869..def4ea1 100644
--- a/src/services/bitcoin-rpc.service.ts
+++ b/src/services/bitcoin-rpc.service.ts
@@ -3,12 +3,11 @@ import { ConfigService } from '@nestjs/config';
 import { RPCClient } from 'rpc-bitcoin';
 import { BehaviorSubject, filter, shareReplay } from 'rxjs';
 import { RpcBlockService } from 'src/ORM/rpc-block/rpc-block.service';
+import * as zmq from 'zeromq/v5-compat';
 
 import { IBlockTemplate } from '../models/bitcoin-rpc/IBlockTemplate';
 import { IMiningInfo } from '../models/bitcoin-rpc/IMiningInfo';
 
-// import * as zmq from 'zeromq';
-
 @Injectable()
 export class BitcoinRpcService {
 
@@ -37,13 +36,13 @@ export class BitcoinRpcService {
         });
 
         if (this.configService.get('BITCOIN_ZMQ_HOST')) {
-            // const sock = zmq.socket("sub");
-            // sock.connect(this.configService.get('BITCOIN_ZMQ_HOST'));
-            // sock.subscribe("rawblock");
-            // sock.on("message", async (topic: Buffer, message: Buffer) => {
-            //     console.log("new block zmq");
-            //     this.pollMiningInfo();
-            // });
+            const sock = zmq.socket("sub");
+            sock.connect(this.configService.get('BITCOIN_ZMQ_HOST'));
+            sock.subscribe("rawblock");
+            sock.on("message", async (topic: Buffer, message: Buffer) => {
+                console.log("new block zmq");
+                this.pollMiningInfo();
+            });
             this.pollMiningInfo();
         } else {
             setInterval(this.pollMiningInfo.bind(this), 500);