diff --git a/code/src/MvvmNavigation.Abstractions/MvvmNavigation.Abstractions.csproj b/code/src/MvvmNavigation.Abstractions/MvvmNavigation.Abstractions.csproj
index 8c58a0c..833f9db 100644
--- a/code/src/MvvmNavigation.Abstractions/MvvmNavigation.Abstractions.csproj
+++ b/code/src/MvvmNavigation.Abstractions/MvvmNavigation.Abstractions.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.1.0" />
   </ItemGroup>
 
 </Project>
diff --git a/code/src/MvvmNavigation.Avalonia/MvvmNavigation.Avalonia.csproj b/code/src/MvvmNavigation.Avalonia/MvvmNavigation.Avalonia.csproj
index 4f8130d..447e4e8 100644
--- a/code/src/MvvmNavigation.Avalonia/MvvmNavigation.Avalonia.csproj
+++ b/code/src/MvvmNavigation.Avalonia/MvvmNavigation.Avalonia.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Avalonia" Version="0.9.0" />
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.1.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/code/src/MvvmNavigation.Core/MvvmNavigation.Core.csproj b/code/src/MvvmNavigation.Core/MvvmNavigation.Core.csproj
index 2c982d3..36b484a 100644
--- a/code/src/MvvmNavigation.Core/MvvmNavigation.Core.csproj
+++ b/code/src/MvvmNavigation.Core/MvvmNavigation.Core.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.1.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/code/src/MvvmNavigation.Internal/MvvmNavigation.Internal.csproj b/code/src/MvvmNavigation.Internal/MvvmNavigation.Internal.csproj
index 2a9558a..7db776b 100644
--- a/code/src/MvvmNavigation.Internal/MvvmNavigation.Internal.csproj
+++ b/code/src/MvvmNavigation.Internal/MvvmNavigation.Internal.csproj
@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.1.0" />
   </ItemGroup>
 
 </Project>
diff --git a/code/src/MvvmNavigation.Wpf/MvvmNavigation.Wpf.csproj b/code/src/MvvmNavigation.Wpf/MvvmNavigation.Wpf.csproj
index 135c2eb..eae9112 100644
--- a/code/src/MvvmNavigation.Wpf/MvvmNavigation.Wpf.csproj
+++ b/code/src/MvvmNavigation.Wpf/MvvmNavigation.Wpf.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2021.1.0" />
   </ItemGroup>
   
   <ItemGroup>