diff --git a/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj b/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj
index 824ca9a..388a8c8 100644
--- a/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj
+++ b/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Azure.Security.KeyVault.Certificates" Version="4.7.0" />
     <PackageReference Include="Azure.Security.KeyVault.Keys" Version="4.7.0" />
     <PackageReference Include="Azure.Security.KeyVault.Secrets" Version="4.7.0" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="9.0.4" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="9.0.9" />
   </ItemGroup>
 
   <Target Name="GenerateBuildMetadata" BeforeTargets="CoreCompile">