diff --git a/GlyphTone.Encoder.Tests/GlyphTone.Encoder.Tests.csproj b/GlyphTone.Encoder.Tests/GlyphTone.Encoder.Tests.csproj
index 910b81f..608bd8e 100644
--- a/GlyphTone.Encoder.Tests/GlyphTone.Encoder.Tests.csproj
+++ b/GlyphTone.Encoder.Tests/GlyphTone.Encoder.Tests.csproj
@@ -9,7 +9,7 @@
 
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-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.analyzers" Version="1.27.0">
       <PrivateAssets>all</PrivateAssets>