diff --git a/Cargo.lock b/Cargo.lock
index bbdee961a..314c10f5d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4381,7 +4381,7 @@ version = "1.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "static_assertions",
 ]
 
@@ -5042,9 +5042,9 @@ checksum = "6a5cbf750400958819fb6178eaa83bee5cd9c29a26a40cc241df8c70fdd46984"
 
 [[package]]
 name = "z-serial"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1f288ec253cd9add72c2cf8c24d6525a3d81481b0407a4d53c23c16c871c38c"
+checksum = "1660dfc9f90480610f94c285a9a967b49cd2f57b3b1267d9bd7fd5d4f57c36c8"
 dependencies = [
  "cobs",
  "futures",
diff --git a/Cargo.toml b/Cargo.toml
index 4e5f70f93..4b7b5f1f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -187,7 +187,7 @@ vec_map = "0.8.2"
 webpki-roots = "0.26.5"
 winapi = { version = "0.3.9", features = ["iphlpapi", "winerror"] }
 x509-parser = "0.16.0"
-z-serial = "0.3.0"
+z-serial = "0.3.1"
 either = "1.13.0"
 prost = "0.13.2"
 tls-listener = { version = "0.10.2", features = ["rustls-ring"] }