diff --git a/tests/MyNihongo.KanaDetector.Tests.csproj b/tests/MyNihongo.KanaDetector.Tests.csproj
index 36e79ea..4ee6246 100644
--- a/tests/MyNihongo.KanaDetector.Tests.csproj
+++ b/tests/MyNihongo.KanaDetector.Tests.csproj
@@ -10,7 +10,7 @@
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-		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.5">
+		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
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