diff --git a/samples/ZeroAlloc.Authorization.AotSmoke/ZeroAlloc.Authorization.AotSmoke.csproj b/samples/ZeroAlloc.Authorization.AotSmoke/ZeroAlloc.Authorization.AotSmoke.csproj
index 6601f32..4604d47 100644
--- a/samples/ZeroAlloc.Authorization.AotSmoke/ZeroAlloc.Authorization.AotSmoke.csproj
+++ b/samples/ZeroAlloc.Authorization.AotSmoke/ZeroAlloc.Authorization.AotSmoke.csproj
@@ -16,7 +16,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
-    <PackageReference Include="ZeroAlloc.TestHelpers" Version="1.*">
+    <PackageReference Include="ZeroAlloc.TestHelpers" Version="1.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>contentfiles;build</IncludeAssets>
     </PackageReference>
diff --git a/tests/ZeroAlloc.Authorization.Generator.Tests/ZeroAlloc.Authorization.Generator.Tests.csproj b/tests/ZeroAlloc.Authorization.Generator.Tests/ZeroAlloc.Authorization.Generator.Tests.csproj
index d4b5bbd..98f2985 100644
--- a/tests/ZeroAlloc.Authorization.Generator.Tests/ZeroAlloc.Authorization.Generator.Tests.csproj
+++ b/tests/ZeroAlloc.Authorization.Generator.Tests/ZeroAlloc.Authorization.Generator.Tests.csproj
@@ -10,9 +10,9 @@
     <NoWarn>$(NoWarn);MA0048;MA0051;MA0047;MA0002;MA0004;MA0006</NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.*" />
-    <PackageReference Include="xunit" Version="2.*" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.*" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
     <!-- Verify.SourceGenerators 2.x depends on Verify 26.x; the matching Verify.Xunit is 26.x. -->
     <PackageReference Include="Verify.Xunit" Version="26.6.0" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
diff --git a/tests/ZeroAlloc.Authorization.PackSmoke/ZeroAlloc.Authorization.PackSmoke.csproj b/tests/ZeroAlloc.Authorization.PackSmoke/ZeroAlloc.Authorization.PackSmoke.csproj
index dcbc83b..af2d797 100644
--- a/tests/ZeroAlloc.Authorization.PackSmoke/ZeroAlloc.Authorization.PackSmoke.csproj
+++ b/tests/ZeroAlloc.Authorization.PackSmoke/ZeroAlloc.Authorization.PackSmoke.csproj
@@ -13,9 +13,9 @@
     <NoWarn>$(NoWarn);MA0002;MA0004;MA0006;MA0011;MA0048;MA0051;MA0074</NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.*" />
-    <PackageReference Include="xunit" Version="2.*" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.*" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>
   <ItemGroup>
     <Using Include="Xunit" />
diff --git a/tests/ZeroAlloc.Authorization.Tests/ZeroAlloc.Authorization.Tests.csproj b/tests/ZeroAlloc.Authorization.Tests/ZeroAlloc.Authorization.Tests.csproj
index 7076d62..0aeb27d 100644
--- a/tests/ZeroAlloc.Authorization.Tests/ZeroAlloc.Authorization.Tests.csproj
+++ b/tests/ZeroAlloc.Authorization.Tests/ZeroAlloc.Authorization.Tests.csproj
@@ -6,11 +6,11 @@
     <NoWarn>$(NoWarn);MA0074;NU1608;NU1701;MA0002;MA0004;MA0047;MA0048</NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.*" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.*" />
-    <PackageReference Include="xunit" Version="2.*" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.*" />
-    <PackageReference Include="ZeroAlloc.TestHelpers" Version="1.*">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+    <PackageReference Include="ZeroAlloc.TestHelpers" Version="1.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>contentfiles;build</IncludeAssets>
     </PackageReference>