diff --git a/Directory.Packages.props b/Directory.Packages.props
index 900c1ff..d7f79db 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -12,7 +12,7 @@
     
     <!-- Vulnerable direct dependencies (examples) -->
     <PackageVersion Include="Newtonsoft.Json" Version="12.0.3" />  <!-- Has known vulnerabilities -->
-    <PackageVersion Include="System.Text.RegularExpressions" Version="4.3.0" /> <!-- Known regex vulnerability -->
+    <PackageVersion Include="System.Text.RegularExpressions" Version="4.3.1" /> <!-- Known regex vulnerability -->
     <PackageVersion Include="System.Net.Http" Version="4.3.0" /> <!-- Contains security vulnerabilities -->
     
     <!-- API dependencies -->