diff --git a/LightweightIocContainer/LightweightIocContainer.csproj b/LightweightIocContainer/LightweightIocContainer.csproj
index 54204ec..c5ac3c9 100644
--- a/LightweightIocContainer/LightweightIocContainer.csproj
+++ b/LightweightIocContainer/LightweightIocContainer.csproj
@@ -38,7 +38,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.2.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.0-beta-20204-02">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/Test.LightweightIocContainer/Test.LightweightIocContainer.csproj b/Test.LightweightIocContainer/Test.LightweightIocContainer.csproj
index 61fac68..005c9a2 100644
--- a/Test.LightweightIocContainer/Test.LightweightIocContainer.csproj
+++ b/Test.LightweightIocContainer/Test.LightweightIocContainer.csproj
@@ -10,11 +10,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
-    <PackageReference Include="Moq" Version="4.14.1" />
-    <PackageReference Include="nunit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1">
+    <PackageReference Include="JetBrains.Annotations" Version="2021.2.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
+    <PackageReference Include="Moq" Version="4.16.1" />
+    <PackageReference Include="nunit" Version="3.13.2" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>