diff --git a/examples/wpfapp/packages.config b/examples/wpfapp/packages.config
index 383f850..1f5f80a 100644
--- a/examples/wpfapp/packages.config
+++ b/examples/wpfapp/packages.config
@@ -18,7 +18,7 @@
   <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="net461" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net461" />
   <package id="System.Threading" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="net461" />
 </packages>
\ No newline at end of file