diff --git a/Realm/Realm/Realm.csproj b/Realm/Realm/Realm.csproj
index 416a6a651d..96c2a9fae0 100644
--- a/Realm/Realm/Realm.csproj
+++ b/Realm/Realm/Realm.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Fody" Version="4.0.2" PrivateAssets="None" />
     <PackageReference Include="Nito.AsyncEx.Context" Version="5.0.0" />
     <PackageReference Include="System.Dynamic.Runtime" Version="4.3.0" />
-    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.2" />
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.1" />
     <PackageReference Include="Remotion.Linq" Version="2.2.0" />
     <PackageReference Include="StyleCop.MSBuild" Version="6.0.0" Condition="'$(MSBuildRuntimeType)' != 'Core'" PrivateAssets="All" />
     <ProjectReference Include="..\Realm.Fody\Realm.Fody.csproj" PrivateAssets="None" />
diff --git a/Tests/Tests.Android/Tests.Android.csproj b/Tests/Tests.Android/Tests.Android.csproj
index 9db0d6ca4d..d0b01ffa18 100644
--- a/Tests/Tests.Android/Tests.Android.csproj
+++ b/Tests/Tests.Android/Tests.Android.csproj
@@ -61,6 +61,7 @@
     <PackageReference Include="Xamarin.Android.Support.v4" Version="28.0.0" />
     <PackageReference Include="Xamarin.Android.Support.v7.CardView" Version="28.0.0" />
     <PackageReference Include="Xamarin.Android.Support.v7.MediaRouter" Version="28.0.0" />
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.1" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="MainActivity.cs" />