diff --git a/Files/Files.csproj b/Files/Files.csproj
index a05ce9578b16..05b61f48eda0 100644
--- a/Files/Files.csproj
+++ b/Files/Files.csproj
@@ -949,7 +949,7 @@
       <Version>2.5.2</Version>
     </PackageReference>
     <PackageReference Include="JetBrains.Annotations">
-      <Version>2020.3.0</Version>
+      <Version>2021.3.0</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.AppCenter.Analytics">
       <Version>4.1.0</Version>