diff --git a/Solution/check_iis/packages.config b/Solution/check_iis/packages.config
index 0049434..241e80a 100644
--- a/Solution/check_iis/packages.config
+++ b/Solution/check_iis/packages.config
@@ -46,7 +46,7 @@
   <package id="System.Security.Cryptography.Algorithms" version="4.2.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.Encoding" version="4.0.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.Primitives" version="4.0.0" targetFramework="net461" />
-  <package id="System.Security.Cryptography.X509Certificates" version="4.1.0" targetFramework="net461" />
+  <package id="System.Security.Cryptography.X509Certificates" version="4.1.2" targetFramework="net461" />
   <package id="System.Security.Principal.Windows" version="4.0.0" targetFramework="net461" />
   <package id="System.ServiceProcess.ServiceController" version="4.1.0" targetFramework="net461" />
   <package id="System.Text.Encoding" version="4.0.11" targetFramework="net461" />