diff --git a/stdc.Tests/stdc.Tests.csproj b/stdc.Tests/stdc.Tests.csproj
index e058ff5..a568355 100644
--- a/stdc.Tests/stdc.Tests.csproj
+++ b/stdc.Tests/stdc.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="nunit" Version="4.3.0" />
+    <PackageReference Include="nunit" Version="4.3.1" />
     <PackageReference Include="NUnit.Analyzers" Version="4.5.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>