diff --git a/Source/spamfilter/spamfilter.BL.Tests/spamfilter.BL.Tests.csproj b/Source/spamfilter/spamfilter.BL.Tests/spamfilter.BL.Tests.csproj
index aa6f668..b99179d 100644
--- a/Source/spamfilter/spamfilter.BL.Tests/spamfilter.BL.Tests.csproj
+++ b/Source/spamfilter/spamfilter.BL.Tests/spamfilter.BL.Tests.csproj
@@ -9,7 +9,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="altcover" Version="8.2.835" />
+      <PackageReference Include="altcover" Version="9.0.102" />
       <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0-preview-20211130-02" />
       <PackageReference Include="xunit" Version="2.4.2-pre.12" />
       <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">