diff --git a/crates/cassandra/RUSTSEC-2016-0006.toml b/crates/cassandra/RUSTSEC-2016-0006.toml
new file mode 100644
index 0000000..b5f8ad0
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+++ b/crates/cassandra/RUSTSEC-2016-0006.toml
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+[advisory]
+id = "RUSTSEC-2016-0006"
+package = "cassandra"
+title = "`cassandra` crate is unmaintained; use `cassandra-cpp` instead"
+informational = "unmaintained"
+date = "2016-12-15"
+url = "https://github.com/tupshin/cassandra-rs/issues/52"
+unaffected_versions = ["> 0.8.1"] # last release
+patched_versions = []
+description = """
+The `cassandra` crate has not seen a release since December 2016, and its author
+is unresponsive.
+
+The `cassandra-cpp` crate is a maintained fork:
+
+https://github.com/Metaswitch/cassandra-rs
+"""