diff --git a/Cargo.lock b/Cargo.lock
index 55260cddf49..6555369b959 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2014,6 +2014,18 @@ name = "nix"
 version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
+dependencies = [
+ "bitflags 2.10.0",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+]
+
+[[package]]
+name = "nix"
+version = "0.31.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225e7cfe711e0ba79a68baeddb2982723e4235247aefce1482f2f16c27865b66"
 dependencies = [
  "bitflags 2.10.0",
  "cfg-if",
@@ -3074,7 +3086,7 @@ dependencies = [
  "malachite-base",
  "malachite-bigint",
  "malachite-q",
- "nix 0.30.1",
+ "nix 0.31.1",
  "num-complex",
  "num-traits",
  "parking_lot",
@@ -3238,7 +3250,7 @@ dependencies = [
  "memchr",
  "memmap2",
  "mt19937",
- "nix 0.30.1",
+ "nix 0.31.1",
  "num-complex",
  "num-integer",
  "num-traits",
@@ -3330,7 +3342,7 @@ dependencies = [
  "log",
  "malachite-bigint",
  "memchr",
- "nix 0.30.1",
+ "nix 0.31.1",
  "num-complex",
  "num-integer",
  "num-traits",
diff --git a/Cargo.toml b/Cargo.toml
index d0f30bd6307..fc76fc07742 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -174,7 +174,7 @@ junction = "1.4.1"
 libc = "0.2.180"
 libffi = "5"
 log = "0.4.29"
-nix = { version = "0.30", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] }
+nix = { version = "0.31", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] }
 malachite-bigint = "0.9.1"
 malachite-q = "0.9.1"
 malachite-base = "0.9.1"