diff --git a/test/_timelock.spec.ts b/test/_timelock.spec.ts
index 84eacd06..1191a401 100644
--- a/test/_timelock.spec.ts
+++ b/test/_timelock.spec.ts
@@ -1,7 +1,7 @@
 import {loadFixture} from "@nomicfoundation/hardhat-network-helpers";
 import {expect} from "chai";
 import {deployReserveTimeLockStrategy} from "../helpers/contracts-deployments";
-import {MAX_UINT_AMOUNT, ZERO_ADDRESS} from "../helpers/constants";
+import {MAX_UINT_AMOUNT, ONE_ADDRESS} from "../helpers/constants";
 import {
   getInitializableAdminUpgradeabilityProxy,
   getPoolConfiguratorProxy,
@@ -531,7 +531,7 @@ describe("TimeLock functionality tests", () => {
     await waitForTx(
       await (await getInitializableAdminUpgradeabilityProxy(timeLock.address))
         .connect(poolAdmin.signer)
-        .changeAdmin(ZERO_ADDRESS)
+        .changeAdmin(ONE_ADDRESS)
     );
     await waitForTx(
       await timeLock
diff --git a/test/_timelock_whitelist.spec.ts b/test/_timelock_whitelist.spec.ts
index b51d79cb..a9938113 100644
--- a/test/_timelock_whitelist.spec.ts
+++ b/test/_timelock_whitelist.spec.ts
@@ -11,7 +11,7 @@ import {supplyAndValidate} from "./helpers/validated-steps";
 import {almostEqual} from "./helpers/uniswapv3-helper";
 import {convertToCurrencyDecimals} from "../helpers/contracts-helpers";
 import {getInitializableAdminUpgradeabilityProxy} from "../helpers/contracts-getters";
-import {ZERO_ADDRESS} from "../helpers/constants";
+import {ONE_ADDRESS} from "../helpers/constants";
 
 describe("timeLock whiteList tests", function () {
   let defaultTimeLockStrategy: DefaultTimeLockStrategy;
@@ -95,7 +95,7 @@ describe("timeLock whiteList tests", function () {
     await waitForTx(
       await (await getInitializableAdminUpgradeabilityProxy(timeLock.address))
         .connect(poolAdmin.signer)
-        .changeAdmin(ZERO_ADDRESS)
+        .changeAdmin(ONE_ADDRESS)
     );
     await waitForTx(
       await timeLock