diff --git a/cli/lib/constants.mjs b/cli/lib/constants.mjs
index b19948929..79937d094 100644
--- a/cli/lib/constants.mjs
+++ b/cli/lib/constants.mjs
@@ -19,3 +19,5 @@ export const DEFAULT_PROPOSER_BOND = 10;
 export const DEFAULT_BLOCK_STAKE = 1;
 
 export const WEBSOCKET_PING_TIME = 15000;
+
+export const GAS_MULTIPLIER = Number(process.env.GAS_MULTIPLIER) || 2;
diff --git a/cli/lib/nf3.mjs b/cli/lib/nf3.mjs
index 6286692b3..cc0b70c8f 100644
--- a/cli/lib/nf3.mjs
+++ b/cli/lib/nf3.mjs
@@ -15,6 +15,7 @@ import {
   DEFAULT_PROPOSER_BOND,
   DEFAULT_FEE,
   WEBSOCKET_PING_TIME,
+  GAS_MULTIPLIER,
 } from './constants.mjs';
 
 // TODO when SDK is refactored such that these functions are split by user, proposer and challenger,
@@ -221,7 +222,7 @@ class Nf3 {
     //   this.nonce = await this.web3.eth.getTransactionCount(this.ethereumAddress, 'pending');
     let gasPrice = 20000000000;
     const gas = (await this.web3.eth.getBlock('latest')).gasLimit;
-    const blockGasPrice = 2 * Number(await this.web3.eth.getGasPrice());
+    const blockGasPrice = GAS_MULTIPLIER * Number(await this.web3.eth.getGasPrice());
     if (blockGasPrice > gasPrice) gasPrice = blockGasPrice;
 
     const tx = {