diff --git a/src/StructuredLogger.Tests/App.config b/src/StructuredLogger.Tests/App.config
index 3f406f08..c0bad2fc 100644
--- a/src/StructuredLogger.Tests/App.config
+++ b/src/StructuredLogger.Tests/App.config
@@ -3,7 +3,7 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="System.Collections.Immutable" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
-        <bindingRedirect oldVersion="0.0.0.0-100.0.0.0" newVersion="6.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-100.0.0.0" newVersion="8.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>