diff --git a/BitFaster.Caching.UnitTests/BitFaster.Caching.UnitTests.csproj b/BitFaster.Caching.UnitTests/BitFaster.Caching.UnitTests.csproj
index 93a5a179..365653ad 100644
--- a/BitFaster.Caching.UnitTests/BitFaster.Caching.UnitTests.csproj
+++ b/BitFaster.Caching.UnitTests/BitFaster.Caching.UnitTests.csproj
@@ -23,7 +23,7 @@
   </ItemGroup>
     
   <ItemGroup Condition="'$(TargetFramework)' == 'net48'">
-    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
+    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/BitFaster.Caching/BitFaster.Caching.csproj b/BitFaster.Caching/BitFaster.Caching.csproj
index 55f0e8dc..e6375ab7 100644
--- a/BitFaster.Caching/BitFaster.Caching.csproj
+++ b/BitFaster.Caching/BitFaster.Caching.csproj
@@ -57,7 +57,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
+     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
   </ItemGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">