diff --git a/src/ZenIoc.Tests/ZenIoc.Tests.csproj b/src/ZenIoc.Tests/ZenIoc.Tests.csproj
index c092a89..f7f3dd7 100644
--- a/src/ZenIoc.Tests/ZenIoc.Tests.csproj
+++ b/src/ZenIoc.Tests/ZenIoc.Tests.csproj
@@ -11,7 +11,7 @@
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-    <PackageReference Include="coverlet.msbuild" Version="3.0.3" />
+    <PackageReference Include="coverlet.msbuild" Version="3.2.0" />
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