diff --git a/Utilities.PdfHandling.NetFramework/packages.config b/Utilities.PdfHandling.NetFramework/packages.config
index 0ddd13f..58aa75b 100644
--- a/Utilities.PdfHandling.NetFramework/packages.config
+++ b/Utilities.PdfHandling.NetFramework/packages.config
@@ -16,7 +16,7 @@
   <package id="System.Diagnostics.PerformanceCounter" version="4.7.0" targetFramework="net472" />
   <package id="System.DirectoryServices" version="4.7.0" targetFramework="net472" />
   <package id="System.DirectoryServices.AccountManagement" version="4.7.0" targetFramework="net472" />
-  <package id="System.DirectoryServices.Protocols" version="4.7.0" targetFramework="net472" />
+  <package id="System.DirectoryServices.Protocols" version="5.0.1" targetFramework="net472" />
   <package id="System.Drawing.Common" version="4.7.0" targetFramework="net472" />
   <package id="System.IO.FileSystem.AccessControl" version="4.7.0" targetFramework="net472" />
   <package id="System.IO.FileSystem.Primitives" version="4.3.0" targetFramework="net472" />