diff --git a/src/Foundatio.TestHarness/Foundatio.TestHarness.csproj b/src/Foundatio.TestHarness/Foundatio.TestHarness.csproj
index 2ea43b04..7019e172 100644
--- a/src/Foundatio.TestHarness/Foundatio.TestHarness.csproj
+++ b/src/Foundatio.TestHarness/Foundatio.TestHarness.csproj
@@ -8,7 +8,7 @@
     <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="Exceptionless.RandomData" Version="1.2.2" />
     <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="8.10.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.1" />
     <PackageReference Include="xunit" Version="2.9.2" />
   </ItemGroup>