diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96bfdbf3f..cc9d6a72b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## vNEXT
+- Add `set-callback-gas.ts` script. (#121)
 - Accept any signature format in `SignatureVerifier.v8` when the account is a smart contract. (#120)
 - Update UML class diagrams. (#112)
 - Generate Solidity documentation. (#111)
diff --git a/scripts/set-callback-gas.ts b/scripts/set-callback-gas.ts
new file mode 100644
index 000000000..28de48811
--- /dev/null
+++ b/scripts/set-callback-gas.ts
@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: 2024 IEXEC BLOCKCHAIN TECH <contact@iex.ec>
+// SPDX-License-Identifier: Apache-2.0
+
+import hre, { deployments } from 'hardhat';
+import { IexecAccessors__factory, IexecMaintenanceDelegate__factory } from '../typechain';
+
+(async () => {
+    const requestedCallbackGas = Number(process.env.CALLBACK_GAS);
+    if (!requestedCallbackGas) {
+        console.error('`CALLBACK_GAS` env variable is missing. Aborting.');
+        process.exit(1);
+    }
+    console.log(`Setting callback-gas to ${requestedCallbackGas.toLocaleString()} ..`);
+    const [owner] = await hre.ethers.getSigners();
+    const erc1538ProxyAddress = (await deployments.get('ERC1538Proxy')).address;
+    const viewCallbackGas = async () =>
+        (await IexecAccessors__factory.connect(erc1538ProxyAddress, owner).callbackgas())
+            .toNumber()
+            .toLocaleString();
+    const callbackGasBefore = await viewCallbackGas();
+    await IexecMaintenanceDelegate__factory.connect(erc1538ProxyAddress, owner)
+        .setCallbackGas(requestedCallbackGas)
+        .then((tx) => tx.wait());
+    console.log(`Changed callback-gas from ${callbackGasBefore} to ${await viewCallbackGas()}`);
+})().catch((error) => console.log(error));