diff --git a/Cargo.lock b/Cargo.lock
index 0d3b3611..d148245c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1481,18 +1481,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.208"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cff085d2cb684faa248efb494c39b68e522822ac0de72ccf08109abde717cfb2"
+checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.208"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24008e81ff7613ed8e5ba0cfaf24e2c2f1e5b8a0495711e44fcd4882fca62bcf"
+checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 103808d5..d32bffb9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ crate-type = ["cdylib"]
 [dependencies]
 pyo3 = { version = "0.22.2", features = ["extension-module", "anyhow"] }
 rayon = "1.10.0"
-serde = { version = "1.0.208", features = ["derive"] }
+serde = { version = "1.0.209", features = ["derive"] }
 sourmash = { version = "0.15.1", features = ["branchwater"] }
 serde_json = "1.0.125"
 niffler = "2.4.0"