diff --git a/openpgp-card-sequoia/Cargo.toml b/openpgp-card-sequoia/Cargo.toml
index 6ddf127..3b82225 100644
--- a/openpgp-card-sequoia/Cargo.toml
+++ b/openpgp-card-sequoia/Cargo.toml
@@ -8,6 +8,8 @@ license = "MIT OR Apache-2.0"
 version = "0.0.1"
 authors = ["Heiko Schaefer <heiko@schaefer.name>"]
 edition = "2018"
+repository = "https://gitlab.com/hkos/openpgp-card"
+documentation = "https://docs.rs/crate/openpgp-card-sequoia"
 
 [dependencies]
 sequoia-openpgp = "1.3"
diff --git a/openpgp-card/Cargo.toml b/openpgp-card/Cargo.toml
index 001632c..f22725c 100644
--- a/openpgp-card/Cargo.toml
+++ b/openpgp-card/Cargo.toml
@@ -8,6 +8,8 @@ license = "MIT OR Apache-2.0"
 version = "0.0.1"
 authors = ["Heiko Schaefer <heiko@schaefer.name>"]
 edition = "2018"
+repository = "https://gitlab.com/hkos/openpgp-card"
+documentation = "https://docs.rs/crate/openpgp-card"
 
 [dependencies]
 pcsc = "2"
diff --git a/openpgp-card/README.md b/openpgp-card/README.md
index 87c4750..503f560 100644
--- a/openpgp-card/README.md
+++ b/openpgp-card/README.md
@@ -12,3 +12,10 @@ specification, in Rust.
 This library is OpenPGP implementation-agnostic. Its communication with 
 the card is based on simple data structures, derived from the formats 
 defined in the OpenPGP card specification.
+
+**Sequoia PGP wrapper**
+
+See the companion crate
+[openpgp-card-sequoia](https://crates.io/crates/openpgp-card-sequoia)
+for a convenient wrapper to use this library with
+[Sequoia PGP](https://sequoia-pgp.org/).
\ No newline at end of file