diff --git a/src/AoC_2023/AoC_2023.csproj b/src/AoC_2023/AoC_2023.csproj
index 24c7583..d56bda6 100644
--- a/src/AoC_2023/AoC_2023.csproj
+++ b/src/AoC_2023/AoC_2023.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AoCHelper" Version="3.0.0" />
+    <PackageReference Include="AoCHelper" Version="4.0.0" />
     <PackageReference Include="FileParser" Version="3.0.0-alpha.1" />
     <PackageReference Include="morelinq" Version="4.0.0" />
     <PackageReference Include="SheepTools" Version="0.13.0" />