diff --git a/Cargo.lock b/Cargo.lock
index d9e6ab48..2de3291d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2244,9 +2244,9 @@ checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
 
 [[package]]
 name = "nix"
-version = "0.29.0"
+version = "0.31.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
+checksum = "cf20d2fde8ff38632c426f1165ed7436270b44f199fc55284c38276f9db47c3d"
 dependencies = [
  "bitflags",
  "cfg-if",
diff --git a/crates/pidgin-coding/Cargo.toml b/crates/pidgin-coding/Cargo.toml
index 71d152d2..a6c72d9c 100644
--- a/crates/pidgin-coding/Cargo.toml
+++ b/crates/pidgin-coding/Cargo.toml
@@ -59,7 +59,7 @@ unicode-normalization = "0.1"
 
 # Process-group reaping (killpg/kill) is Unix-only; nix does not build on Windows.
 [target.'cfg(unix)'.dependencies]
-nix = { version = "0.29", features = ["signal", "process"] }
+nix = { version = "0.31", features = ["signal", "process"] }
 
 [dev-dependencies]
 serde_json = "1"
diff --git a/crates/pidgin-orchestrator/Cargo.toml b/crates/pidgin-orchestrator/Cargo.toml
index bd43b050..40ea64ef 100644
--- a/crates/pidgin-orchestrator/Cargo.toml
+++ b/crates/pidgin-orchestrator/Cargo.toml
@@ -32,7 +32,7 @@ tokio = { version = "1", features = [
 ] }
 
 [target.'cfg(unix)'.dependencies]
-nix = { version = "0.29", features = ["hostname"] }
+nix = { version = "0.31", features = ["hostname"] }
 
 [dev-dependencies]
 tempfile = "3"