--- a/Cargo.toml
+++ b/Cargo.toml
@@ -133,3 +133,6 @@
 version = "2.0"
 [target."cfg(unix)".dependencies.tokio-uds]
 version = "0.2"
+
+[patch.crates-io]
+"sequoia-rfc2822" = {path = '/builddir/sequoia-v0.9.0/rfc2822'}