diff --git a/src/2015/AdventOfCode.2015.Puzzles.Test/AdventOfCode.2015.Puzzles.Test.csproj b/src/2015/AdventOfCode.2015.Puzzles.Test/AdventOfCode.2015.Puzzles.Test.csproj
index 801c522..dadaf23 100644
--- a/src/2015/AdventOfCode.2015.Puzzles.Test/AdventOfCode.2015.Puzzles.Test.csproj
+++ b/src/2015/AdventOfCode.2015.Puzzles.Test/AdventOfCode.2015.Puzzles.Test.csproj
@@ -10,7 +10,7 @@
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     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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diff --git a/src/2020/AdventOfCode.2020.Puzzles.Test/AdventOfCode.2020.Puzzles.Test.csproj b/src/2020/AdventOfCode.2020.Puzzles.Test/AdventOfCode.2020.Puzzles.Test.csproj
index dc4343a..ce1aa02 100644
--- a/src/2020/AdventOfCode.2020.Puzzles.Test/AdventOfCode.2020.Puzzles.Test.csproj
+++ b/src/2020/AdventOfCode.2020.Puzzles.Test/AdventOfCode.2020.Puzzles.Test.csproj
@@ -9,7 +9,7 @@
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