diff --git a/OpcUaHelper.Demo/packages.config b/OpcUaHelper.Demo/packages.config
index 5704888..3297d89 100644
--- a/OpcUaHelper.Demo/packages.config
+++ b/OpcUaHelper.Demo/packages.config
@@ -99,7 +99,7 @@
   <package id="System.ServiceModel.Primitives" version="4.8.0" targetFramework="net461" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net461" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net461" />
-  <package id="System.Text.Encodings.Web" version="4.5.0" targetFramework="net461" />
+  <package id="System.Text.Encodings.Web" version="4.5.1" targetFramework="net461" />
   <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net461" />