diff --git a/zzio.tests/zzio.tests.csproj b/zzio.tests/zzio.tests.csproj
index b6b46adb..c4f9cbc1 100644
--- a/zzio.tests/zzio.tests.csproj
+++ b/zzio.tests/zzio.tests.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="nunit" Version="4.2.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/zzre.core.tests/zzre.core.tests.csproj b/zzre.core.tests/zzre.core.tests.csproj
index 5626b311..4eab2a12 100644
--- a/zzre.core.tests/zzre.core.tests.csproj
+++ b/zzre.core.tests/zzre.core.tests.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="nunit" Version="4.2.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
   </ItemGroup>
 
   <ItemGroup>