diff --git a/e2e-tests/test/hardhat-apis.test.ts b/e2e-tests/test/hardhat-apis.test.ts
index b39d635a..9ec6d6dd 100644
--- a/e2e-tests/test/hardhat-apis.test.ts
+++ b/e2e-tests/test/hardhat-apis.test.ts
@@ -64,8 +64,7 @@ describe("hardhat_mine", function () {
   });
 });
 
-// TODO: Run this test once eth_sendTransaction has been implemented or when different tests have been added
-xdescribe("hardhat_impersonateAccount & hardhat_stopImpersonatingAccount", function () {
+describe("hardhat_impersonateAccount & hardhat_stopImpersonatingAccount", function () {
   it("Should allow transfers of funds without knowing the Private Key", async function () {
     // Arrange
     const userWallet = Wallet.createRandom().connect(provider);
@@ -84,8 +83,8 @@ xdescribe("hardhat_impersonateAccount & hardhat_stopImpersonatingAccount", funct
     await recieptTx.wait();
 
     // Assert
-    expect(await userWallet.getBalance()).to.equal(ethers.utils.parseEther("0.42"));
-    expect(await provider.getBalance(RichAccounts[0].Account)).to.equal(beforeBalance.sub(0.42));
+    expect((await userWallet.getBalance()).eq(ethers.utils.parseEther("0.42"))).to.true;
+    expect((await provider.getBalance(RichAccounts[0].Account)).eq(beforeBalance.sub(ethers.utils.parseEther("0.42")))).to.true;
   });
 });
 
diff --git a/e2e-tests/test/main.test.ts b/e2e-tests/test/main.test.ts
index 0aaf0a12..a5739dad 100644
--- a/e2e-tests/test/main.test.ts
+++ b/e2e-tests/test/main.test.ts
@@ -62,7 +62,7 @@ describe("Greeter Smart Contract", function () {
 
     // Validate log is created
     expect(receipt.logs.length).to.greaterThanOrEqual(1);
-    const setGreetingLog = receipt.logs[1];
+    const setGreetingLog = receipt.logs[0];
     expect(setGreetingLog.address).to.equal(greeter.address);
 
     const eventInterface = new ethers.utils.Interface(["event LogString(string value)"]);
@@ -79,7 +79,7 @@ describe("Greeter Smart Contract", function () {
     let receipt: TransactionReceipt = await setGreetingTx.wait();
 
     // Create filter
-    const topic = receipt.logs[1].topics[0];
+    const topic = receipt.logs[0].topics[0];
     const filterId = await provider.send("eth_newFilter", [
       {
         fromBlock: "earliest",
diff --git a/e2e-tests/test/zks-apis.test.ts b/e2e-tests/test/zks-apis.test.ts
index 55580123..a27e04dd 100644
--- a/e2e-tests/test/zks-apis.test.ts
+++ b/e2e-tests/test/zks-apis.test.ts
@@ -31,7 +31,7 @@ describe("zks_estimateFee", function () {
     const response: Fee = await provider.send("zks_estimateFee", [transaction]);
 
     // Assert
-    expect(ethers.BigNumber.from(response.gas_limit)).to.eql(ethers.BigNumber.from("732250"), "Unexpected gas_limit");
+    expect(ethers.BigNumber.from(response.gas_limit)).to.eql(ethers.BigNumber.from("621166"), "Unexpected gas_limit");
     expect(ethers.BigNumber.from(response.gas_per_pubdata_limit)).to.eql(
       ethers.BigNumber.from("4080"),
       "Unexpected gas_per_pubdata_limit"
diff --git a/src/node/in_memory.rs b/src/node/in_memory.rs
index 7389e9af..e7f21f30 100644
--- a/src/node/in_memory.rs
+++ b/src/node/in_memory.rs
@@ -1722,7 +1722,9 @@ mod tests {
     use zksync_types::utils::deployed_address_create;
 
     use super::*;
-    use crate::{http_fork_source::HttpForkSource, node::InMemoryNode, testing};
+    use crate::{
+        http_fork_source::HttpForkSource, node::InMemoryNode, system_contracts::Options, testing,
+    };
 
     #[tokio::test]
     async fn test_run_l2_tx_validates_tx_gas_limit_too_high() {
@@ -1842,7 +1844,7 @@ mod tests {
             None,
             None,
             InMemoryNodeConfig {
-                system_contracts_options: Option::BuiltInWithoutSecurity,
+                system_contracts_options: Options::BuiltInWithoutSecurity,
                 ..Default::default()
             },
         );
diff --git a/src/system_contracts.rs b/src/system_contracts.rs
index fbaae46d..b1409727 100644
--- a/src/system_contracts.rs
+++ b/src/system_contracts.rs
@@ -105,11 +105,9 @@ fn bsc_load_with_bootloader(
             include_bytes!("deps/contracts/DefaultAccount.json"),
         ),
         Options::Local => read_sys_contract_bytecode("", "DefaultAccount", ContractLanguage::Sol),
-        // TODO: restore
         Options::BuiltInWithoutSecurity => bytecode_from_slice(
             "DefaultAccountNoSecurity",
-            // include_bytes!("deps/contracts/DefaultAccountNoSecurity.json"),
-            include_bytes!("deps/contracts/DefaultAccount.json"),
+            include_bytes!("deps/contracts/DefaultAccountNoSecurity.json"),
         ),
     };