diff --git a/code/test/MvvmNavigation.Abstractions.ContractTests/MvvmNavigation.Abstractions.ContractTests.csproj b/code/test/MvvmNavigation.Abstractions.ContractTests/MvvmNavigation.Abstractions.ContractTests.csproj
index ad319ad..60615a2 100644
--- a/code/test/MvvmNavigation.Abstractions.ContractTests/MvvmNavigation.Abstractions.ContractTests.csproj
+++ b/code/test/MvvmNavigation.Abstractions.ContractTests/MvvmNavigation.Abstractions.ContractTests.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>
 
diff --git a/code/test/MvvmNavigation.Abstractions.UnitTests/MvvmNavigation.Abstractions.UnitTests.csproj b/code/test/MvvmNavigation.Abstractions.UnitTests/MvvmNavigation.Abstractions.UnitTests.csproj
index a39c064..a28e245 100644
--- a/code/test/MvvmNavigation.Abstractions.UnitTests/MvvmNavigation.Abstractions.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Abstractions.UnitTests/MvvmNavigation.Abstractions.UnitTests.csproj
@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
   </ItemGroup>
diff --git a/code/test/MvvmNavigation.Avalonia.UnitTests/MvvmNavigation.Avalonia.UnitTests.csproj b/code/test/MvvmNavigation.Avalonia.UnitTests/MvvmNavigation.Avalonia.UnitTests.csproj
index 46ae592..92a2a98 100644
--- a/code/test/MvvmNavigation.Avalonia.UnitTests/MvvmNavigation.Avalonia.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Avalonia.UnitTests/MvvmNavigation.Avalonia.UnitTests.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Avalonia" Version="0.9.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" Condition="$(TargetFramework.StartsWith('netcore'))" />
   </ItemGroup>
diff --git a/code/test/MvvmNavigation.Avalonia.Unity.IntegrationTests/MvvmNavigation.Avalonia.Unity.IntegrationTests.csproj b/code/test/MvvmNavigation.Avalonia.Unity.IntegrationTests/MvvmNavigation.Avalonia.Unity.IntegrationTests.csproj
index 6f17408..0d2fe03 100644
--- a/code/test/MvvmNavigation.Avalonia.Unity.IntegrationTests/MvvmNavigation.Avalonia.Unity.IntegrationTests.csproj
+++ b/code/test/MvvmNavigation.Avalonia.Unity.IntegrationTests/MvvmNavigation.Avalonia.Unity.IntegrationTests.csproj
@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
   </ItemGroup>
diff --git a/code/test/MvvmNavigation.Core.ContractTests/MvvmNavigation.Core.ContractTests.csproj b/code/test/MvvmNavigation.Core.ContractTests/MvvmNavigation.Core.ContractTests.csproj
index 4241032..f48c26e 100644
--- a/code/test/MvvmNavigation.Core.ContractTests/MvvmNavigation.Core.ContractTests.csproj
+++ b/code/test/MvvmNavigation.Core.ContractTests/MvvmNavigation.Core.ContractTests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>
 
diff --git a/code/test/MvvmNavigation.Core.UnitTests/MvvmNavigation.Core.UnitTests.csproj b/code/test/MvvmNavigation.Core.UnitTests/MvvmNavigation.Core.UnitTests.csproj
index f4f16a7..b670384 100644
--- a/code/test/MvvmNavigation.Core.UnitTests/MvvmNavigation.Core.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Core.UnitTests/MvvmNavigation.Core.UnitTests.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
   </ItemGroup>
 
diff --git a/code/test/MvvmNavigation.Internal.ContractTests/MvvmNavigation.Internal.ContractTests.csproj b/code/test/MvvmNavigation.Internal.ContractTests/MvvmNavigation.Internal.ContractTests.csproj
index 68a193d..bd621ab 100644
--- a/code/test/MvvmNavigation.Internal.ContractTests/MvvmNavigation.Internal.ContractTests.csproj
+++ b/code/test/MvvmNavigation.Internal.ContractTests/MvvmNavigation.Internal.ContractTests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>
 
diff --git a/code/test/MvvmNavigation.Internal.UnitTests/MvvmNavigation.Internal.UnitTests.csproj b/code/test/MvvmNavigation.Internal.UnitTests/MvvmNavigation.Internal.UnitTests.csproj
index 321a7a6..47b9752 100644
--- a/code/test/MvvmNavigation.Internal.UnitTests/MvvmNavigation.Internal.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Internal.UnitTests/MvvmNavigation.Internal.UnitTests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="NUnit.ApplicationDomain" Version="11.1.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
diff --git a/code/test/MvvmNavigation.Tests.Common.Unity/MvvmNavigation.Tests.Common.Unity.csproj b/code/test/MvvmNavigation.Tests.Common.Unity/MvvmNavigation.Tests.Common.Unity.csproj
index db5f1a4..adbf981 100644
--- a/code/test/MvvmNavigation.Tests.Common.Unity/MvvmNavigation.Tests.Common.Unity.csproj
+++ b/code/test/MvvmNavigation.Tests.Common.Unity/MvvmNavigation.Tests.Common.Unity.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="Unity" Version="5.11.7" />
   </ItemGroup>
 
diff --git a/code/test/MvvmNavigation.Tests.Common/MvvmNavigation.Tests.Common.csproj b/code/test/MvvmNavigation.Tests.Common/MvvmNavigation.Tests.Common.csproj
index 5db944f..dae333e 100644
--- a/code/test/MvvmNavigation.Tests.Common/MvvmNavigation.Tests.Common.csproj
+++ b/code/test/MvvmNavigation.Tests.Common/MvvmNavigation.Tests.Common.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit" Version="3.13.1" />
   </ItemGroup>
 
 </Project>
diff --git a/code/test/MvvmNavigation.Unity.UnitTests/MvvmNavigation.Unity.UnitTests.csproj b/code/test/MvvmNavigation.Unity.UnitTests/MvvmNavigation.Unity.UnitTests.csproj
index 0a36d8a..54abd8e 100644
--- a/code/test/MvvmNavigation.Unity.UnitTests/MvvmNavigation.Unity.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Unity.UnitTests/MvvmNavigation.Unity.UnitTests.csproj
@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
   </ItemGroup>
diff --git a/code/test/MvvmNavigation.Wpf.UnitTests/MvvmNavigation.Wpf.UnitTests.csproj b/code/test/MvvmNavigation.Wpf.UnitTests/MvvmNavigation.Wpf.UnitTests.csproj
index 5760681..b9b29cd 100644
--- a/code/test/MvvmNavigation.Wpf.UnitTests/MvvmNavigation.Wpf.UnitTests.csproj
+++ b/code/test/MvvmNavigation.Wpf.UnitTests/MvvmNavigation.Wpf.UnitTests.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" Condition="$(TargetFramework.StartsWith('netcore'))" />
   </ItemGroup>
diff --git a/code/test/MvvmNavigation.Wpf.Unity.IntegrationTests/MvvmNavigation.Wpf.Unity.IntegrationTests.csproj b/code/test/MvvmNavigation.Wpf.Unity.IntegrationTests/MvvmNavigation.Wpf.Unity.IntegrationTests.csproj
index 41c64a5..dbd556c 100644
--- a/code/test/MvvmNavigation.Wpf.Unity.IntegrationTests/MvvmNavigation.Wpf.Unity.IntegrationTests.csproj
+++ b/code/test/MvvmNavigation.Wpf.Unity.IntegrationTests/MvvmNavigation.Wpf.Unity.IntegrationTests.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Appveyor.TestLogger" Version="2.0.0" />
     <PackageReference Include="Moq" Version="4.14.4" />
-    <PackageReference Include="nunit" Version="3.12.0" />
+    <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" Condition="$(TargetFramework.StartsWith('netcore'))" />
   </ItemGroup>