diff --git a/Directory.Packages.props b/Directory.Packages.props
index be79f5f..4ba77ae 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -30,6 +30,6 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.CodeFix.Testing" Version="1.1.4" />
     <PackageVersion Include="Polyfill" Version="11.4.5" />
     <!-- Transitive via test dependencies; pinned to patched version (GHSA-846f-f764-76mx, GHSA-2fmv-rv2c-59x7). -->
-    <PackageVersion Include="System.Security.Cryptography.Pkcs" Version="10.0.14" />
+    <PackageVersion Include="System.Security.Cryptography.Pkcs" Version="10.0.15" />
   </ItemGroup>
 </Project>