diff --git a/Source/ACE.DatLoader.Tests/ACE.DatLoader.Tests.csproj b/Source/ACE.DatLoader.Tests/ACE.DatLoader.Tests.csproj
index 045649cb85..42633d1a64 100644
--- a/Source/ACE.DatLoader.Tests/ACE.DatLoader.Tests.csproj
+++ b/Source/ACE.DatLoader.Tests/ACE.DatLoader.Tests.csproj
@@ -28,7 +28,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.6.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
   </ItemGroup>
 
diff --git a/Source/ACE.Database.Tests/ACE.Database.Tests.csproj b/Source/ACE.Database.Tests/ACE.Database.Tests.csproj
index bb57cbc33f..7b9728c01c 100644
--- a/Source/ACE.Database.Tests/ACE.Database.Tests.csproj
+++ b/Source/ACE.Database.Tests/ACE.Database.Tests.csproj
@@ -29,7 +29,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.6.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
   </ItemGroup>
 
diff --git a/Source/ACE.Server.Tests/ACE.Server.Tests.csproj b/Source/ACE.Server.Tests/ACE.Server.Tests.csproj
index 84fa617896..150bc3bccb 100644
--- a/Source/ACE.Server.Tests/ACE.Server.Tests.csproj
+++ b/Source/ACE.Server.Tests/ACE.Server.Tests.csproj
@@ -29,7 +29,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.6.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
   </ItemGroup>