diff --git a/src/Thrifty.Core/Thrifty.Core.csproj b/src/Thrifty.Core/Thrifty.Core.csproj
index 1dc4001..f7e2c08 100644
--- a/src/Thrifty.Core/Thrifty.Core.csproj
+++ b/src/Thrifty.Core/Thrifty.Core.csproj
@@ -46,7 +46,7 @@
     <PackageReference Include="System.IO.Pipes" Version="4.3.0" />
     <PackageReference Include="System.Threading.ThreadPool" Version="4.3.0" />
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
-    <PackageReference Include="System.Net.Security" Version="4.3.0" />
+    <PackageReference Include="System.Net.Security" Version="4.3.1" />
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
   </ItemGroup>