diff --git a/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj b/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
index 5df5ffa..ef266e3 100644
--- a/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
+++ b/tests/WsjtxUtils.WsjtxMessages.Tests/WsjtxUtils.WsjtxMessages.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.3.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.4.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.4.3" />
   </ItemGroup>
 
diff --git a/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj b/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
index e88d1b7..374cf15 100644
--- a/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
+++ b/tests/WsjtxUtils.WsjtxUdpServer.Tests/WsjtxUtils.WsjtxUdpServer.Tests.csproj
@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="Moq" Version="4.20.70" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.3.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.4.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.4.3" />
   </ItemGroup>