diff --git a/lerna.json b/lerna.json
index 1908dec80..20c0681ee 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,7 +2,7 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.2.40",
+  "version": "0.2.41",
   "npmClient": "yarn",
   "useWorkspaces": true,
   "command": {
diff --git a/packages/cache/package.json b/packages/cache/package.json
index 65ab09056..af61cf7d6 100644
--- a/packages/cache/package.json
+++ b/packages/cache/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/cache",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "description": "Generic object cache",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 08df74ba5..d1b5ba781 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/cli",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "scripts": {
@@ -11,8 +11,8 @@
     "chat": "DEBUG='vulcanize:*, laconic:*' node dist/chat.js"
   },
   "dependencies": {
-    "@cerc-io/peer": "^0.2.40",
-    "@cerc-io/util": "^0.2.40",
+    "@cerc-io/peer": "^0.2.41",
+    "@cerc-io/util": "^0.2.41",
     "@ethersproject/providers": "^5.4.4",
     "@graphql-tools/utils": "^9.1.1",
     "@ipld/dag-cbor": "^8.0.0",
diff --git a/packages/cli/src/peer.ts b/packages/cli/src/peer.ts
index f32fe709c..45e3fb0dd 100644
--- a/packages/cli/src/peer.ts
+++ b/packages/cli/src/peer.ts
@@ -6,6 +6,8 @@
 import { hideBin } from 'yargs/helpers';
 import yargs from 'yargs';
 import debug from 'debug';
+import fs from 'fs';
+import path from 'path';
 
 import {
   PeerInitConfig,
@@ -19,6 +21,7 @@ const log = debug('vulcanize:peer');
 
 interface Arguments {
   relayMultiaddr: string;
+  denyMultiaddrs?: string;
   maxConnections: number;
   dialTimeout: number;
   maxRelayConnections: number;
@@ -38,7 +41,22 @@ export class PeerCmd {
       peerIdObj = readPeerId(argv.peerIdFile);
     }
 
+    let denyMultiaddrsList: string[] = [];
+    if (argv.denyMultiaddrs) {
+      const denyMultiaddrsFilePath = path.resolve(argv.denyMultiaddrs);
+
+      if (!fs.existsSync(denyMultiaddrsFilePath)) {
+        console.log(`File at given path ${denyMultiaddrsFilePath} not found, exiting`);
+        process.exit();
+      }
+
+      console.log(`Reading blacklisted multiaddr(s) from file ${denyMultiaddrsFilePath}`);
+      const denyMultiaddrsListObj = fs.readFileSync(denyMultiaddrsFilePath, 'utf-8');
+      denyMultiaddrsList = JSON.parse(denyMultiaddrsListObj);
+    }
+
     const peerNodeInit: PeerInitConfig = {
+      denyMultiaddrs: denyMultiaddrsList,
       maxConnections: argv.maxConnections,
       dialTimeout: argv.dialTimeout,
       maxRelayConnections: argv.maxRelayConnections,
@@ -73,6 +91,10 @@ function _getArgv (): any {
       describe: 'Multiaddr of the primary relay node for this peer',
       demandOption: true
     },
+    denyMultiaddrs: {
+      type: 'string',
+      describe: 'Blacklisted multiaddr(s) list file path (json)'
+    },
     maxConnections: {
       type: 'number',
       describe: 'Max number of connections for a peer'
diff --git a/packages/cli/src/server.ts b/packages/cli/src/server.ts
index bfe06ee56..7130fb828 100644
--- a/packages/cli/src/server.ts
+++ b/packages/cli/src/server.ts
@@ -173,6 +173,7 @@ export class ServerCmd {
         port: relayConfig.port ?? RELAY_DEFAULT_PORT,
         announceDomain: relayConfig.announce,
         relayPeers: relayConfig.relayPeers ?? [],
+        denyMultiaddrs: relayConfig.denyMultiaddrs ?? [],
         dialTimeout: relayConfig.dialTimeout ?? DIAL_TIMEOUT,
         pingInterval: relayConfig.pingInterval ?? DEFAULT_PING_INTERVAL,
         redialInterval: relayConfig.redialInterval ?? RELAY_REDIAL_INTERVAL,
@@ -198,6 +199,7 @@ export class ServerCmd {
       const peerNodeInit: PeerInitConfig = {
         pingInterval: peerConfig.pingInterval,
         pingTimeout: peerConfig.pingTimeout,
+        denyMultiaddrs: peerConfig.denyMultiaddrs,
         maxRelayConnections: peerConfig.maxRelayConnections,
         relayRedialInterval: peerConfig.relayRedialInterval,
         maxConnections: peerConfig.maxConnections,
diff --git a/packages/codegen/package.json b/packages/codegen/package.json
index 590fbe0f0..5c51d4d6f 100644
--- a/packages/codegen/package.json
+++ b/packages/codegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/codegen",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "description": "Code generator",
   "private": true,
   "main": "index.js",
@@ -20,7 +20,7 @@
   },
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
-    "@cerc-io/util": "^0.2.40",
+    "@cerc-io/util": "^0.2.41",
     "@graphql-tools/load-files": "^6.5.2",
     "@poanet/solidity-flattener": "https://github.com/vulcanize/solidity-flattener.git",
     "@solidity-parser/parser": "^0.13.2",
diff --git a/packages/codegen/src/templates/package-template.handlebars b/packages/codegen/src/templates/package-template.handlebars
index bf7a97059..cb0d23731 100644
--- a/packages/codegen/src/templates/package-template.handlebars
+++ b/packages/codegen/src/templates/package-template.handlebars
@@ -42,12 +42,12 @@
   "dependencies": {
     "@apollo/client": "^3.3.19",
     "@ethersproject/providers": "^5.4.4",
-    "@cerc-io/cli": "^0.2.40",
-    "@cerc-io/ipld-eth-client": "^0.2.40",
-    "@cerc-io/solidity-mapper": "^0.2.40",
-    "@cerc-io/util": "^0.2.40",
+    "@cerc-io/cli": "^0.2.41",
+    "@cerc-io/ipld-eth-client": "^0.2.41",
+    "@cerc-io/solidity-mapper": "^0.2.41",
+    "@cerc-io/util": "^0.2.41",
     {{#if (subgraphPath)}}
-    "@cerc-io/graph-node": "^0.2.40",
+    "@cerc-io/graph-node": "^0.2.41",
     {{/if}}
     "apollo-type-bigint": "^0.1.3",
     "debug": "^4.3.1",
diff --git a/packages/graph-node/package.json b/packages/graph-node/package.json
index 2156a9356..cb3730b5e 100644
--- a/packages/graph-node/package.json
+++ b/packages/graph-node/package.json
@@ -1,10 +1,10 @@
 {
   "name": "@cerc-io/graph-node",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "devDependencies": {
-    "@cerc-io/solidity-mapper": "^0.2.40",
+    "@cerc-io/solidity-mapper": "^0.2.41",
     "@ethersproject/providers": "^5.4.4",
     "@graphprotocol/graph-ts": "^0.22.0",
     "@nomiclabs/hardhat-ethers": "^2.0.2",
@@ -51,9 +51,9 @@
   "dependencies": {
     "@apollo/client": "^3.3.19",
     "@cerc-io/assemblyscript": "0.19.10-watcher-ts-0.1.2",
-    "@cerc-io/cache": "^0.2.40",
-    "@cerc-io/ipld-eth-client": "^0.2.40",
-    "@cerc-io/util": "^0.2.40",
+    "@cerc-io/cache": "^0.2.41",
+    "@cerc-io/ipld-eth-client": "^0.2.41",
+    "@cerc-io/util": "^0.2.41",
     "@types/json-diff": "^0.5.2",
     "@types/yargs": "^17.0.0",
     "bn.js": "^4.11.9",
diff --git a/packages/ipld-eth-client/package.json b/packages/ipld-eth-client/package.json
index c44ab26a6..5c9bbcd1d 100644
--- a/packages/ipld-eth-client/package.json
+++ b/packages/ipld-eth-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/ipld-eth-client",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "description": "IPLD ETH Client",
   "main": "dist/index.js",
   "scripts": {
@@ -20,7 +20,7 @@
   "homepage": "https://github.com/cerc-io/watcher-ts#readme",
   "dependencies": {
     "@apollo/client": "^3.7.1",
-    "@cerc-io/cache": "^0.2.40",
+    "@cerc-io/cache": "^0.2.41",
     "cross-fetch": "^3.1.4",
     "debug": "^4.3.1",
     "ethers": "^5.4.4",
diff --git a/packages/peer/package.json b/packages/peer/package.json
index 400c45e03..44e8d97a0 100644
--- a/packages/peer/package.json
+++ b/packages/peer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/peer",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "description": "libp2p module",
   "main": "dist/index.js",
   "exports": "./dist/index.js",
diff --git a/packages/peer/src/cli/relay.ts b/packages/peer/src/cli/relay.ts
index 00702f135..9ade76cee 100644
--- a/packages/peer/src/cli/relay.ts
+++ b/packages/peer/src/cli/relay.ts
@@ -20,6 +20,7 @@ interface Arguments {
   announce?: string;
   peerIdFile?: string;
   relayPeers?: string;
+  denyMultiaddrs?: string;
   dialTimeout: number;
   pingInterval: number;
   redialInterval: number;
@@ -31,6 +32,7 @@ async function main (): Promise<void> {
   const argv: Arguments = _getArgv();
   let peerIdObj: PeerIdObj | undefined;
   let relayPeersList: string[] = [];
+  let denyMultiaddrsList: string[] = [];
 
   if (argv.peerIdFile) {
     const peerIdFilePath = path.resolve(argv.peerIdFile);
@@ -55,12 +57,26 @@ async function main (): Promise<void> {
     relayPeersList = JSON.parse(relayPeersListObj);
   }
 
+  if (argv.denyMultiaddrs) {
+    const denyMultiaddrsFilePath = path.resolve(argv.denyMultiaddrs);
+
+    if (!fs.existsSync(denyMultiaddrsFilePath)) {
+      console.log(`File at given path ${denyMultiaddrsFilePath} not found, exiting`);
+      process.exit();
+    }
+
+    console.log(`Reading blacklisted multiaddr(s) from file ${denyMultiaddrsFilePath}`);
+    const denyMultiaddrsListObj = fs.readFileSync(denyMultiaddrsFilePath, 'utf-8');
+    denyMultiaddrsList = JSON.parse(denyMultiaddrsListObj);
+  }
+
   const relayNodeInit: RelayNodeInitConfig = {
     host: argv.host,
     port: argv.port,
     peerIdObj,
     announceDomain: argv.announce,
     relayPeers: relayPeersList,
+    denyMultiaddrs: denyMultiaddrsList,
     dialTimeout: argv.dialTimeout,
     pingInterval: argv.pingInterval,
     redialInterval: argv.redialInterval,
@@ -101,6 +117,10 @@ function _getArgv (): Arguments {
       alias: 'r',
       describe: 'Relay peer multiaddr(s) list file path (json)'
     },
+    denyMultiaddrs: {
+      type: 'string',
+      describe: 'Blacklisted multiaddr(s) list file path (json)'
+    },
     pingInterval: {
       type: 'number',
       describe: 'Interval to check relay peer connections using ping (ms)',
diff --git a/packages/peer/src/peer.ts b/packages/peer/src/peer.ts
index 608e16948..b1a4d1025 100644
--- a/packages/peer/src/peer.ts
+++ b/packages/peer/src/peer.ts
@@ -43,7 +43,7 @@ import {
   P2P_WEBRTC_STAR_ID
 } from './constants.js';
 import { PeerHearbeatChecker } from './peer-heartbeat-checker.js';
-import { debugInfoRequestHandler, dialWithRetry, getConnectionsInfo, getPseudonymForPeerId, getSelfInfo, wsPeerFilter } from './utils/index.js';
+import { debugInfoRequestHandler, dialWithRetry, getConnectionsInfo, getPseudonymForPeerId, getSelfInfo, isMultiaddrBlacklisted, wsPeerFilter } from './utils/index.js';
 import { ConnectionType, DebugPeerInfo, DebugRequest, PeerConnectionInfo, PeerSelfInfo } from './types/debug-info.js';
 
 const log = debug('laconic:peer');
@@ -62,6 +62,7 @@ export interface PeerInitConfig {
   pingTimeout?: number;
   maxRelayConnections?: number;
   relayRedialInterval?: number;
+  denyMultiaddrs?: string[];
   maxConnections?: number;
   minConnections?: number;
   dialTimeout?: number;
@@ -78,6 +79,7 @@ export class Peer {
 
   _relayRedialInterval?: number;
   _maxRelayConnections?: number;
+  _denyMultiaddrs?: string[];
 
   _debugInfoEnabled?: boolean;
 
@@ -114,6 +116,7 @@ export class Peer {
 
   async init (initOptions: PeerInitConfig, peerIdObj?: PeerIdObj): Promise<void> {
     this._relayRedialInterval = initOptions.relayRedialInterval;
+    this._denyMultiaddrs = initOptions.denyMultiaddrs;
     this._maxRelayConnections = initOptions.maxRelayConnections;
     this._debugInfoEnabled = initOptions.enableDebugInfo;
     const pingTimeout = initOptions.pingTimeout ?? DEFAULT_PING_TIMEOUT;
@@ -164,6 +167,7 @@ export class Peer {
         connectionManager: {
           maxDialsPerPeer: MAX_CONCURRENT_DIALS_PER_PEER,
           autoDial: false,
+          deny: initOptions.denyMultiaddrs,
           maxConnections: initOptions.maxConnections ?? MAX_CONNECTIONS,
           minConnections: initOptions.minConnections ?? MIN_CONNECTIONS,
           dialTimeout: initOptions.dialTimeout ?? DIAL_TIMEOUT,
@@ -467,6 +471,11 @@ export class Peer {
 
     let isRelayPeer = false;
     for (const multiaddr of peer.multiaddrs) {
+      if (isMultiaddrBlacklisted(this._denyMultiaddrs ?? [], multiaddr)) {
+        log(`Ignoring blacklisted node with multiaddr ${multiaddr.toString()}`);
+        return;
+      }
+
       if (this.isRelayPeerMultiaddr(multiaddr.toString())) {
         isRelayPeer = true;
         break;
diff --git a/packages/peer/src/relay.ts b/packages/peer/src/relay.ts
index 52d576499..c1a254a11 100644
--- a/packages/peer/src/relay.ts
+++ b/packages/peer/src/relay.ts
@@ -28,7 +28,7 @@ import {
   DEBUG_INFO_TOPIC
 } from './constants.js';
 import { PeerHearbeatChecker } from './peer-heartbeat-checker.js';
-import { debugInfoRequestHandler, dialWithRetry, getConnectionsInfo, getPseudonymForPeerId, getSelfInfo } from './utils/index.js';
+import { debugInfoRequestHandler, dialWithRetry, getConnectionsInfo, getPseudonymForPeerId, getSelfInfo, isMultiaddrBlacklisted } from './utils/index.js';
 import { PeerIdObj } from './peer.js';
 import { SelfInfo, ConnectionInfo } from './types/debug-info.js';
 
@@ -40,6 +40,7 @@ export interface RelayNodeInitConfig {
   peerIdObj?: PeerIdObj;
   announceDomain?: string;
   relayPeers: string[];
+  denyMultiaddrs: string[];
   dialTimeout: number;
   pingInterval: number;
   pingTimeout?: number;
@@ -94,7 +95,8 @@ export async function createRelayNode (init: RelayNodeInitConfig): Promise<Libp2
     connectionManager: {
       maxDialsPerPeer: MAX_CONCURRENT_DIALS_PER_PEER,
       autoDial: false,
-      dialTimeout: init.dialTimeout
+      dialTimeout: init.dialTimeout,
+      deny: init.denyMultiaddrs
     },
     ping: {
       timeout: pingTimeout
@@ -157,7 +159,7 @@ export async function createRelayNode (init: RelayNodeInitConfig): Promise<Libp2
 
   if (init.relayPeers.length) {
     log('Dialling relay peers');
-    await _dialRelayPeers(node, init.relayPeers, init.maxDialRetry, init.redialInterval);
+    await _dialRelayPeers(node, init.relayPeers, init.denyMultiaddrs, init.maxDialRetry, init.redialInterval);
   }
 
   if (init.enableDebugInfo) {
@@ -168,9 +170,14 @@ export async function createRelayNode (init: RelayNodeInitConfig): Promise<Libp2
   return node;
 }
 
-async function _dialRelayPeers (node: Libp2p, relayPeersList: string[], maxDialRetry: number, redialInterval: number): Promise<void> {
+async function _dialRelayPeers (node: Libp2p, relayPeersList: string[], denyMultiaddrs: string[], maxDialRetry: number, redialInterval: number): Promise<void> {
   relayPeersList.forEach(async (relayPeer) => {
     const relayMultiaddr = multiaddr(relayPeer);
+    if (isMultiaddrBlacklisted(denyMultiaddrs, relayMultiaddr)) {
+      log(`Ignoring blacklisted node with multiaddr ${relayMultiaddr.toString()}`);
+      return;
+    }
+
     await dialWithRetry(
       node,
       relayMultiaddr,
diff --git a/packages/peer/src/utils/index.ts b/packages/peer/src/utils/index.ts
index 079df0d9e..fb1e023ea 100644
--- a/packages/peer/src/utils/index.ts
+++ b/packages/peer/src/utils/index.ts
@@ -84,6 +84,17 @@ export const getPseudonymForPeerId = (peerId: string): string => {
   });
 };
 
+/**
+ * Method to check if the given multiaddr is part of a blacklist
+ * @param blacklist
+ * @param multiaddr
+ */
+export const isMultiaddrBlacklisted = (blacklist: string[], multiaddr: Multiaddr): boolean => {
+  return blacklist.some(maString => {
+    return multiaddr.toString().startsWith(maString);
+  });
+};
+
 /**
  * Handler for pubsub debug info request
  * @param peerId
diff --git a/packages/solidity-mapper/package.json b/packages/solidity-mapper/package.json
index b425f33d6..70056a1c3 100644
--- a/packages/solidity-mapper/package.json
+++ b/packages/solidity-mapper/package.json
@@ -1,10 +1,10 @@
 {
   "name": "@cerc-io/solidity-mapper",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "devDependencies": {
-    "@cerc-io/ipld-eth-client": "^0.2.40",
+    "@cerc-io/ipld-eth-client": "^0.2.41",
     "@ethersproject/abi": "^5.3.0",
     "@nomiclabs/hardhat-ethers": "^2.0.2",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
diff --git a/packages/test/package.json b/packages/test/package.json
index df72d0184..bccd6bcc2 100644
--- a/packages/test/package.json
+++ b/packages/test/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/test",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "private": true,
diff --git a/packages/tracing-client/package.json b/packages/tracing-client/package.json
index 3c254f6e8..dbf56fd2c 100644
--- a/packages/tracing-client/package.json
+++ b/packages/tracing-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cerc-io/tracing-client",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "description": "ETH VM tracing client",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/util/package.json b/packages/util/package.json
index d21a59ece..6aaec2e25 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -1,11 +1,11 @@
 {
   "name": "@cerc-io/util",
-  "version": "0.2.40",
+  "version": "0.2.41",
   "main": "dist/index.js",
   "license": "AGPL-3.0",
   "dependencies": {
     "@apollo/utils.keyvaluecache": "^1.0.1",
-    "@cerc-io/solidity-mapper": "^0.2.40",
+    "@cerc-io/solidity-mapper": "^0.2.41",
     "@ethersproject/providers": "^5.4.4",
     "@graphql-tools/schema": "^9.0.10",
     "@graphql-tools/utils": "^9.1.1",
@@ -37,8 +37,8 @@
     "yargs": "^17.0.1"
   },
   "devDependencies": {
-    "@cerc-io/cache": "^0.2.40",
-    "@cerc-io/ipld-eth-client": "^0.2.40",
+    "@cerc-io/cache": "^0.2.41",
+    "@cerc-io/ipld-eth-client": "^0.2.41",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@types/express": "^4.17.14",
     "@types/fs-extra": "^9.0.11",
diff --git a/packages/util/src/config.ts b/packages/util/src/config.ts
index e8adf44d1..01bd4e828 100644
--- a/packages/util/src/config.ts
+++ b/packages/util/src/config.ts
@@ -53,6 +53,9 @@ export interface RelayConfig {
   // Relay peer multiaddr(s) list
   relayPeers?: string[];
 
+  // Blacklisted multiaddr(s) list
+  denyMultiaddrs?: string[];
+
   // Timeout (ms) for dial to relay peers
   dialTimeout?: number;
 
@@ -101,6 +104,9 @@ export interface PeerConfig {
   // Redial interval (ms) to relay node on connection failure
   relayRedialInterval?: number;
 
+  // Blacklisted multiaddr(s) list
+  denyMultiaddrs?: string[];
+
   // Max number of connections for a peer
   maxConnections?: number;