diff --git a/Notation.Plugin.AzureKeyVault.Tests/Notation.Plugin.AzureKeyVault.Tests.csproj b/Notation.Plugin.AzureKeyVault.Tests/Notation.Plugin.AzureKeyVault.Tests.csproj
index c73b11f..cff0b27 100644
--- a/Notation.Plugin.AzureKeyVault.Tests/Notation.Plugin.AzureKeyVault.Tests.csproj
+++ b/Notation.Plugin.AzureKeyVault.Tests/Notation.Plugin.AzureKeyVault.Tests.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="Moq.AutoMock" Version="3.5.0" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="8.0.1" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="9.0.0" />
     <PackageReference Include="xunit" Version="2.9.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj b/Notation.Plugin.AzureKeyVault/Notation.Plugin.AzureKeyVault.csproj
index db5ca7d..4e1f8b9 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="8.0.1" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="9.0.0" />
   </ItemGroup>
 
   <Target Name="GenerateBuildMetadata" BeforeTargets="CoreCompile">