diff --git a/Cargo.lock b/Cargo.lock
index 677a62b..7509277 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -888,7 +888,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19"
 dependencies = [
  "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.5",
 ]
 
 [[package]]
@@ -1874,18 +1874,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.198"
+version = "1.0.200"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9846a40c979031340571da2545a4e5b7c4163bdae79b301d5f86d03979451fcc"
+checksum = "ddc6f9cc94d67c0e21aaf7eda3a010fd3af78ebf6e096aa6e2e13c79749cce4f"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.198"
+version = "1.0.200"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e88edab869b01783ba905e7d0153f9fc1a6505a96e4ad3018011eedb838566d9"
+checksum = "856f046b9400cee3c8c94ed572ecdb752444c24528c035cd35882aad6f492bcb"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 8ad2f93..cc08f53 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ crate-type = ["cdylib"]
 [dependencies]
 pyo3 = { version = "0.21.2", features = ["extension-module", "anyhow"] }
 rayon = "1.10.0"
-serde = { version = "1.0.198", features = ["derive"] }
+serde = { version = "1.0.200", features = ["derive"] }
 sourmash = { version = "0.13.1", features=["branchwater"]}
 serde_json = "1.0.116"
 niffler = "2.4.0"