diff --git a/src/PolylineAlgorithm/InvalidCoordinateException.cs b/src/PolylineAlgorithm/InvalidCoordinateException.cs
index 5a3e4ea..e0433e2 100644
--- a/src/PolylineAlgorithm/InvalidCoordinateException.cs
+++ b/src/PolylineAlgorithm/InvalidCoordinateException.cs
@@ -5,7 +5,6 @@
 
 namespace PolylineAlgorithm;
 
-using PolylineAlgorithm.Internal;
 using PolylineAlgorithm.Properties;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
diff --git a/src/PolylineAlgorithm/InvalidPolylineException.cs b/src/PolylineAlgorithm/InvalidPolylineException.cs
index ffc41bc..24d9175 100644
--- a/src/PolylineAlgorithm/InvalidPolylineException.cs
+++ b/src/PolylineAlgorithm/InvalidPolylineException.cs
@@ -5,7 +5,6 @@
 
 namespace PolylineAlgorithm;
 
-using PolylineAlgorithm.Internal;
 using PolylineAlgorithm.Properties;
 using System;
 using System.Diagnostics;
diff --git a/src/PolylineAlgorithm/InvalidReaderStateException.cs b/src/PolylineAlgorithm/InvalidReaderStateException.cs
index 4202087..0c09bdb 100644
--- a/src/PolylineAlgorithm/InvalidReaderStateException.cs
+++ b/src/PolylineAlgorithm/InvalidReaderStateException.cs
@@ -5,7 +5,6 @@
 
 namespace PolylineAlgorithm;
 
-using PolylineAlgorithm.Internal;
 using PolylineAlgorithm.Properties;
 using System;
 using System.Diagnostics;
diff --git a/src/PolylineAlgorithm/InvalidWriterStateException.cs b/src/PolylineAlgorithm/InvalidWriterStateException.cs
index cf2bf77..481ca2b 100644
--- a/src/PolylineAlgorithm/InvalidWriterStateException.cs
+++ b/src/PolylineAlgorithm/InvalidWriterStateException.cs
@@ -5,7 +5,6 @@
 
 namespace PolylineAlgorithm;
 
-using PolylineAlgorithm.Internal;
 using PolylineAlgorithm.Properties;
 using System;
 using System.Diagnostics;
diff --git a/src/PolylineAlgorithm/Validation/CoordinateRange.cs b/src/PolylineAlgorithm/Validation/CoordinateRange.cs
index 399e005..498ce8a 100644
--- a/src/PolylineAlgorithm/Validation/CoordinateRange.cs
+++ b/src/PolylineAlgorithm/Validation/CoordinateRange.cs
@@ -5,7 +5,6 @@
 
 namespace PolylineAlgorithm.Validation;
 
-using PolylineAlgorithm.Internal;
 using PolylineAlgorithm.Properties;
 using System;
 using System.Diagnostics;