diff --git a/Quintessential.csproj b/Quintessential.csproj
index 1c67f0e..0d63224 100644
--- a/Quintessential.csproj
+++ b/Quintessential.csproj
@@ -16,13 +16,10 @@
 
   <ItemGroup>
     <PackageReference Include="YamlDotNet" Version="11.2.1" />
+    <PackageReference Include="SharpZipLib" Version="1.3.3" />
   </ItemGroup>
 
   <ItemGroup>
-    <Reference Include="Ionic.Zip.Reduced">
-      <HintPath>..\..\..\..\..\Program Files (x86)\Steam\steamapps\common\Opus Magnum\Ionic.Zip.Reduced.dll</HintPath>
-      <CopyLocal>False</CopyLocal>
-    </Reference>
     <Reference Include="Lightning">
       <HintPath>..\..\..\..\..\Program Files (x86)\Steam\steamapps\common\Opus Magnum\IntermediaryLightning.exe</HintPath>
       <Private>false</Private>
diff --git a/Quintessential/QuintessentialLoader.cs b/Quintessential/QuintessentialLoader.cs
index 28e8a39..c9e8615 100644
--- a/Quintessential/QuintessentialLoader.cs
+++ b/Quintessential/QuintessentialLoader.cs
@@ -7,7 +7,7 @@
 using System.Reflection;
 using System.Resources;
 
-using Ionic.Zip;
+using ICSharpCode.SharpZipLib.Zip;
 
 using MonoMod.Utils;
 
@@ -46,6 +46,8 @@ public class QuintessentialLoader {
 	private static readonly string zipExtractSuffix = "__quintessential_from_zip";
 	private static readonly string quintAssetFolder = "__quintessential_assets";
 
+	private static FastZip zipExtractor = new FastZip();
+
 	public static void PreInit() {
 		try {
 			PathLightning = Path.GetDirectoryName(typeof(GameLogic).Assembly.Location);
@@ -93,6 +95,8 @@ public static void PreInit() {
 			var set = manager.GetResourceSet(CultureInfo.InvariantCulture, true, true);
 			foreach(object item in set){
 				if(item is DictionaryEntry de){
+			foreach(object item in set) {
+				if(item is DictionaryEntry de) {
 					string name = (string)de.Key;
 					using var toStream = File.OpenWrite(Path.Combine(outDir, name));
 					byte[] content = (byte[])de.Value;
@@ -323,8 +327,7 @@ protected static void FindZipMod(string zip) {
 			return;
 
 		var dest = zip.Substring(0, zip.Length - ".zip".Length) + zipExtractSuffix;
-		using(ZipFile file = new(zip))
-			file.ExtractAll(dest);
+		zipExtractor.ExtractZip(zip, dest, "");
 		FindFolderMod(dest, zip);
 	}