diff --git a/src/GITSMimeSign.Tests/GitSMimeSign.Tests.csproj b/src/GITSMimeSign.Tests/GitSMimeSign.Tests.csproj
index 953ae44..89c701b 100644
--- a/src/GITSMimeSign.Tests/GitSMimeSign.Tests.csproj
+++ b/src/GITSMimeSign.Tests/GitSMimeSign.Tests.csproj
@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
-    <PackageReference Include="FluentAssertions" Version="6.1.0" />
+    <PackageReference Include="FluentAssertions" Version="6.7.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
   </ItemGroup>