diff --git a/Tests/ChemSharp.Base.Tests/ChemSharp.Base.Tests.csproj b/Tests/ChemSharp.Base.Tests/ChemSharp.Base.Tests.csproj
index f91ef2d..7d63fe8 100644
--- a/Tests/ChemSharp.Base.Tests/ChemSharp.Base.Tests.csproj
+++ b/Tests/ChemSharp.Base.Tests/ChemSharp.Base.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.11.0"/>
+    <PackageReference Include="FluentAssertions" Version="6.12.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3"/>
     <PackageReference Include="xunit" Version="2.4.2"/>
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
diff --git a/Tests/ChemSharp.Molecules.Tests/ChemSharp.Molecules.Tests.csproj b/Tests/ChemSharp.Molecules.Tests/ChemSharp.Molecules.Tests.csproj
index 08869e6..203bfe1 100644
--- a/Tests/ChemSharp.Molecules.Tests/ChemSharp.Molecules.Tests.csproj
+++ b/Tests/ChemSharp.Molecules.Tests/ChemSharp.Molecules.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.11.0"/>
+    <PackageReference Include="FluentAssertions" Version="6.12.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3"/>
     <PackageReference Include="xunit" Version="2.4.2"/>
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
diff --git a/Tests/ChemSharp.Spectroscopy.Tests/ChemSharp.Spectroscopy.Tests.csproj b/Tests/ChemSharp.Spectroscopy.Tests/ChemSharp.Spectroscopy.Tests.csproj
index d1a1a1b..35b1180 100644
--- a/Tests/ChemSharp.Spectroscopy.Tests/ChemSharp.Spectroscopy.Tests.csproj
+++ b/Tests/ChemSharp.Spectroscopy.Tests/ChemSharp.Spectroscopy.Tests.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.11.0"/>
+    <PackageReference Include="FluentAssertions" Version="6.12.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3"/>
     <PackageReference Include="xunit" Version="2.4.2"/>
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
diff --git a/Tests/ChemSharp.UnitConversion.Tests/ChemSharp.UnitConversion.Tests.csproj b/Tests/ChemSharp.UnitConversion.Tests/ChemSharp.UnitConversion.Tests.csproj
index d26b157..dff3c1e 100644
--- a/Tests/ChemSharp.UnitConversion.Tests/ChemSharp.UnitConversion.Tests.csproj
+++ b/Tests/ChemSharp.UnitConversion.Tests/ChemSharp.UnitConversion.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.11.0"/>
+    <PackageReference Include="FluentAssertions" Version="6.12.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3"/>
     <PackageReference Include="xunit" Version="2.4.2"/>
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">