diff --git a/ImperatorToCK3/CK3/Provinces/ProvinceCollection.cs b/ImperatorToCK3/CK3/Provinces/ProvinceCollection.cs
index 6c7343f95..f62a980c8 100644
--- a/ImperatorToCK3/CK3/Provinces/ProvinceCollection.cs
+++ b/ImperatorToCK3/CK3/Provinces/ProvinceCollection.cs
@@ -1,13 +1,12 @@
 using commonItems;
 using commonItems.Collections;
 using commonItems.Mods;
-using CsvHelper;
-using CsvHelper.Configuration;
 using ImperatorToCK3.CK3.Titles;
 using ImperatorToCK3.Exceptions;
 using ImperatorToCK3.Mappers.Culture;
 using ImperatorToCK3.Mappers.Province;
 using ImperatorToCK3.Mappers.Religion;
+using Microsoft.VisualBasic.FileIO;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
@@ -30,41 +29,33 @@ private void LoadProvinceDefinitions(ModFilesystem ck3ModFs) { // TODO: get rid
 		if (filePath is null) {
 			throw new ConverterException("Province definitions file not found!");
 		}
+		
+		int count = 0;
+		using (var parser = new TextFieldParser(filePath)) {
+			parser.TextFieldType = FieldType.Delimited;
+			parser.SetDelimiters(";");
+			parser.CommentTokens = ["#"];
+			parser.TrimWhiteSpace = true;
+			
+			while (!parser.EndOfData) {
+				string[]? fields = parser.ReadFields();
+				if (fields is null) {
+					continue;
+				}
 
-		var csvConfig = new CsvConfiguration(CultureInfo.InvariantCulture) {
-			Delimiter = ";",
-			HasHeaderRecord = false,
-			AllowComments = true,
-			TrimOptions = TrimOptions.Trim,
-			IgnoreBlankLines = true,
-			ShouldSkipRecord = (args => {
-				string? cell = args.Row[0];
-				if (cell is null) {
-					return true;
+				if (fields.Length < 1) {
+					continue;
+				}
+				
+				var id = ulong.Parse(fields[0]);
+				if (id == 0) {
+					continue;
 				}
 
-				cell = cell.Trim();
-				return cell.Length == 0 || cell[0] == '#';
-			}),
-		};
-		var provinceDefinition = new {
-			Id = default(ulong),
-		};
-		using var reader = new StreamReader(filePath);
-		using var csv = new CsvReader(reader, csvConfig);
-		var records = csv.GetRecords(provinceDefinition);
-
-		var count = 0;
-		foreach (var record in records) {
-			var id = record.Id;
-			if (id == 0) {
-				continue;
+				AddOrReplace(new Province(id));
+				++count;
 			}
-
-			AddOrReplace(new Province(id));
-			++count;
 		}
-
 		Logger.Debug($"Loaded {count} province definitions.");
 	}
 
diff --git a/ImperatorToCK3/CommonUtils/Map/Adjacency.cs b/ImperatorToCK3/CommonUtils/Map/Adjacency.cs
deleted file mode 100644
index 2d9999ed8..000000000
--- a/ImperatorToCK3/CommonUtils/Map/Adjacency.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-using CsvHelper.Configuration.Attributes;
-
-namespace ImperatorToCK3.CommonUtils.Map;
-
-public sealed class Adjacency {
-	[Index(0)] public long From { get; set; }
-	[Index(1)]  public long To { get; set; }
-	[Index(2)] public string Type { get; set; } = string.Empty;
-	[Index(3)] public long Through { get; set; }
-	[Index(4)] public long StartX { get; set; }
-	[Index(5)] public long StartY { get; set; }
-	[Index(6)] public long StopX { get; set; }
-	[Index(7)] public long StopY { get; set; }
-	[Index(8)] public string Comment { get; set; } = string.Empty;
-}
\ No newline at end of file
diff --git a/ImperatorToCK3/CommonUtils/Map/MapData.cs b/ImperatorToCK3/CommonUtils/Map/MapData.cs
index d18bb4c28..235991fe1 100644
--- a/ImperatorToCK3/CommonUtils/Map/MapData.cs
+++ b/ImperatorToCK3/CommonUtils/Map/MapData.cs
@@ -1,7 +1,6 @@
 using commonItems;
 using commonItems.Mods;
-using CsvHelper;
-using CsvHelper.Configuration;
+using Microsoft.VisualBasic.FileIO;
 using SixLabors.ImageSharp;
 using SixLabors.ImageSharp.PixelFormats;
 using System;
@@ -11,8 +10,6 @@
 using System.Linq;
 using System.Runtime.InteropServices;
 
-using Index = CsvHelper.Configuration.Attributes.IndexAttribute;
-
 namespace ImperatorToCK3.CommonUtils.Map;
 
 public sealed class MapData {
@@ -423,37 +420,39 @@ private void LoadAdjacencies(string adjacenciesFilename, ModFilesystem modFS) {
 		}
 		Logger.Debug($"Loading adjacencies from \"{adjacenciesPath}\"...");
 		
-		var reader = new StreamReader(adjacenciesPath);
-		
-		var csvConfig = new CsvConfiguration(CultureInfo.InvariantCulture) {
-			Delimiter = ";",
-			HasHeaderRecord = false, // Ignore header using ShouldSkipRecord instead.
-			AllowComments = true,
-			TrimOptions = TrimOptions.Trim,
-			IgnoreBlankLines = true,
-			ShouldSkipRecord = (args => {
-				string? cell = args.Row[0];
-				if (cell is null) {
-					return true;
+		int count = 0;
+		using (var parser = new TextFieldParser(adjacenciesPath)) {
+			parser.TextFieldType = FieldType.Delimited;
+			parser.SetDelimiters(";");
+			parser.CommentTokens = ["#"];
+			parser.TrimWhiteSpace = true;
+			
+			// Skip the header row.
+			parser.ReadFields();
+			
+			while (!parser.EndOfData) {
+				string[]? fields = parser.ReadFields();
+				if (fields is null) {
+					continue;
 				}
 
-				cell = cell.Trim();
-				return cell.Length == 0 || cell[0] == '#' || !ulong.TryParse(cell, out _);
-			}),
-		};
-		using CsvReader csv = new(reader, csvConfig);
-		var records = csv.GetRecords<Adjacency>().ToList();
-
-		int count = 0;
-		foreach (var record in records) {
-			if (record.From == -1) {
-				continue;
-			}
-			if (record.To == -1) {
-				continue;
+				if (fields.Length < 2) {
+					continue;
+				}
+				
+				var fromStr = fields[0];
+				if (fromStr == "-1") {
+					continue;
+				}
+				
+				var toStr = fields[1];
+				if (toStr == "-1") {
+					continue;
+				}
+				
+				AddAdjacency(ulong.Parse(fromStr, CultureInfo.InvariantCulture), ulong.Parse(toStr, CultureInfo.InvariantCulture));
+				++count;
 			}
-			AddAdjacency((ulong)record.From, (ulong)record.To);
-			++count;
 		}
 		Logger.Debug($"Loaded {count} province adjacencies.");
 	}
diff --git a/ImperatorToCK3/ImperatorToCK3.csproj b/ImperatorToCK3/ImperatorToCK3.csproj
index 9d8b63f61..2dd5e4a4e 100644
--- a/ImperatorToCK3/ImperatorToCK3.csproj
+++ b/ImperatorToCK3/ImperatorToCK3.csproj
@@ -33,7 +33,6 @@
 
   <ItemGroup>
     <PackageReference Include="ColorHashSharp" Version="1.0.0" />
-    <PackageReference Include="CsvHelper" Version="31.0.2" />
     <PackageReference Include="Magick.NET-Q16-AnyCPU" Version="13.6.0" />
     <PackageReference Include="Meziantou.Analyzer" Version="2.0.146">
       <PrivateAssets>all</PrivateAssets>
@@ -104,7 +103,6 @@
 
 <ItemGroup>
 	<!-- root descriptors for trimming -->
-	<TrimmerRootAssembly Include="CsvHelper" />
 	<TrimmerRootAssembly Include="log4net" />
 	<TrimmerRootAssembly Include="commonItems" />
 	<TrimmerRootAssembly Include="System.Configuration.ConfigurationManager" />