diff --git a/Source/spamfilter/spamfilter.Interfaces/spamfilter.Interfaces.csproj b/Source/spamfilter/spamfilter.Interfaces/spamfilter.Interfaces.csproj
index dc3475c..6ce634a 100644
--- a/Source/spamfilter/spamfilter.Interfaces/spamfilter.Interfaces.csproj
+++ b/Source/spamfilter/spamfilter.Interfaces/spamfilter.Interfaces.csproj
@@ -9,7 +9,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="MailKit" Version="4.16.0" />
+      <PackageReference Include="MailKit" Version="4.17.0" />
     </ItemGroup>
 
 </Project>