diff --git a/.gitignore b/.gitignore
index 5a96df095..35b170a12 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,7 @@ docs/
 
 # Emacs
 .log/
+
+# Nix
+shell.nix
+.envrc
diff --git a/__tests__/e2e/contract/Contract.test.ts b/__tests__/e2e/contract/Contract.test.ts
index 172cfed06..c589acb81 100644
--- a/__tests__/e2e/contract/Contract.test.ts
+++ b/__tests__/e2e/contract/Contract.test.ts
@@ -56,7 +56,7 @@ describe("ContractCreateTransaction", () => {
 
         let info = await new ContractInfoQuery()
             .setContractId(contract)
-            .setMaxQueryPayment(new Hbar(1))
+            .setMaxQueryPayment(new Hbar(2))
             .execute(client);
 
         expect(info.contractId).toStrictEqual(contract);
@@ -69,7 +69,7 @@ describe("ContractCreateTransaction", () => {
 
         const bytecode = await new ContractBytecodeQuery()
             .setContractId(contract)
-            .setMaxQueryPayment(new Hbar(1))
+            .setMaxQueryPayment(new Hbar(2))
             .execute(client);
 
         expect(bytecode.length).toBe(798);
@@ -118,7 +118,7 @@ describe("ContractCreateTransaction", () => {
 
         info = await new ContractInfoQuery()
             .setContractId(contract)
-            .setMaxQueryPayment(new Hbar(1))
+            .setMaxQueryPayment(new Hbar(2))
             .execute(client);
 
         expect(info.contractId).toStrictEqual(contract);
@@ -138,7 +138,7 @@ describe("ContractCreateTransaction", () => {
         try {
             await new ContractInfoQuery()
                 .setContractId(contract)
-                .setMaxQueryPayment(new Hbar(1))
+                .setMaxQueryPayment(new Hbar(2))
                 .execute(client);
         } catch {
             errorThrown = true;
diff --git a/src/contract/ContractFunctionParams.ts b/src/contract/ContractFunctionParams.ts
index 88f52811b..a7dd8480d 100644
--- a/src/contract/ContractFunctionParams.ts
+++ b/src/contract/ContractFunctionParams.ts
@@ -58,7 +58,7 @@ export class ContractFunctionParams {
             }
         }
 
-        this._selector.addBytes32();
+        this._selector.addBytes32Array();
 
         return this._addParam(value, true);
     }