diff --git a/ILSpy.Installer/ILSpy.Installer.csproj b/ILSpy.Installer/ILSpy.Installer.csproj
index 86580dc8c..ae609b85e 100644
--- a/ILSpy.Installer/ILSpy.Installer.csproj
+++ b/ILSpy.Installer/ILSpy.Installer.csproj
@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="WixSharp_wix4" Version="2.6.1" />
+    <PackageReference Include="WixSharp_wix4" Version="2.7.3" />
   </ItemGroup>
 
   <Target Name="PostBuild" AfterTargets="PostBuildEvent">