diff --git a/NPTicket/NPTicket.csproj b/NPTicket/NPTicket.csproj
index c659c7c..c7ebd69 100644
--- a/NPTicket/NPTicket.csproj
+++ b/NPTicket/NPTicket.csproj
@@ -21,6 +21,6 @@
     </PropertyGroup>
     
     <ItemGroup>
-      <PackageReference Include="BouncyCastle.Cryptography" Version="2.5.0" />
+      <PackageReference Include="BouncyCastle.Cryptography" Version="2.5.1" />
     </ItemGroup>
 </Project>