diff --git a/csharp-oop-simplified2/Application/AccountApplicationService.cs b/csharp-oop-simplified2/Application/AccountApplicationService.cs
index 3efda42..4b09838 100644
--- a/csharp-oop-simplified2/Application/AccountApplicationService.cs
+++ b/csharp-oop-simplified2/Application/AccountApplicationService.cs
@@ -1,6 +1,6 @@
-using CsharpOopSimplified2.Domain;
+using CsharpFp1.Domain;
 
-namespace CsharpOopSimplified2.Application;
+namespace CsharpFp1.Application;
 
 public static class AccountApplicationService
 {
diff --git a/csharp-oop-simplified2/Domain/Account.cs b/csharp-oop-simplified2/Domain/Account.cs
index 5a3e671..e17e2ab 100644
--- a/csharp-oop-simplified2/Domain/Account.cs
+++ b/csharp-oop-simplified2/Domain/Account.cs
@@ -1,4 +1,4 @@
-namespace CsharpOopSimplified2.Domain;
+namespace CsharpFp1.Domain;
 
 /// Domain entity / aggregate root representing a bank account
 public sealed class Account
diff --git a/csharp-oop-simplified2/Domain/IAccountRepository.cs b/csharp-oop-simplified2/Domain/IAccountRepository.cs
index 3425b46..a86cad5 100644
--- a/csharp-oop-simplified2/Domain/IAccountRepository.cs
+++ b/csharp-oop-simplified2/Domain/IAccountRepository.cs
@@ -1,4 +1,4 @@
-namespace CsharpOopSimplified2.Domain;
+namespace CsharpFp1.Domain;
 
 /// Repository abstraction used to load and save accounts
 public interface IAccountRepository
diff --git a/csharp-oop-simplified2/Domain/InsufficientBalanceException.cs b/csharp-oop-simplified2/Domain/InsufficientBalanceException.cs
index 30658fa..08333ad 100644
--- a/csharp-oop-simplified2/Domain/InsufficientBalanceException.cs
+++ b/csharp-oop-simplified2/Domain/InsufficientBalanceException.cs
@@ -1,4 +1,4 @@
-namespace CsharpOopSimplified2.Domain;
+namespace CsharpFp1.Domain;
 
 /// Custom domain exception thrown when a withdrawal would cause the balance to go below zero
 public sealed class InsufficientBalanceException : InvalidOperationException
diff --git a/csharp-oop-simplified2/Domain/Money.cs b/csharp-oop-simplified2/Domain/Money.cs
index 2156789..61f1c2f 100644
--- a/csharp-oop-simplified2/Domain/Money.cs
+++ b/csharp-oop-simplified2/Domain/Money.cs
@@ -1,4 +1,4 @@
-namespace CsharpOopSimplified2.Domain;
+namespace CsharpFp1.Domain;
 
 /// Value object used to represent money and enforce simple invariants.
 /// Note that this implementation uses immutable patterns for the data
diff --git a/csharp-oop-simplified2/Infrastructure/InMemoryAccountRepository.cs b/csharp-oop-simplified2/Infrastructure/InMemoryAccountRepository.cs
index cd73b80..0f1ce9b 100644
--- a/csharp-oop-simplified2/Infrastructure/InMemoryAccountRepository.cs
+++ b/csharp-oop-simplified2/Infrastructure/InMemoryAccountRepository.cs
@@ -1,6 +1,6 @@
-using CsharpOopSimplified2.Domain;
+using CsharpFp1.Domain;
 
-namespace CsharpOopSimplified2.Infrastructure;
+namespace CsharpFp1.Infrastructure;
 
 /// Simple in-memory repository for demonstration
 public class InMemoryAccountRepository : IAccountRepository
diff --git a/csharp-oop-simplified2/Program.cs b/csharp-oop-simplified2/Program.cs
index 2e6fee1..e5102be 100644
--- a/csharp-oop-simplified2/Program.cs
+++ b/csharp-oop-simplified2/Program.cs
@@ -1,8 +1,8 @@
-using CsharpOopSimplified2.Application;
-using CsharpOopSimplified2.Domain;
-using CsharpOopSimplified2.Infrastructure;
+using CsharpFp1.Application;
+using CsharpFp1.Domain;
+using CsharpFp1.Infrastructure;
 
-namespace CsharpOopSimplified2;
+namespace CsharpFp1;
 
 public class Program
 {