diff --git a/src/Microsoft.AspNetCore.WebUtilities/Microsoft.AspNetCore.WebUtilities.csproj b/src/Microsoft.AspNetCore.WebUtilities/Microsoft.AspNetCore.WebUtilities.csproj
index aadb5e3..a850e71 100644
--- a/src/Microsoft.AspNetCore.WebUtilities/Microsoft.AspNetCore.WebUtilities.csproj
+++ b/src/Microsoft.AspNetCore.WebUtilities/Microsoft.AspNetCore.WebUtilities.csproj
@@ -27,7 +27,7 @@
     <PackageReference Include="Microsoft.Extensions.Primitives" Version="1.1.1" />
     <PackageReference Include="Microsoft.Net.Http.Headers" Version="1.1.2" />
     <PackageReference Include="System.Buffers" Version="4.3.0" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="4.3.1" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="4.5.1" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">