diff --git a/Cargo.lock b/Cargo.lock
index b39736dac..a3d9fe414 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1137,9 +1137,9 @@ checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
 
 [[package]]
 name = "endian-type"
-version = "0.1.2"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c34f04666d835ff5d62e058c3995147c06f42fe86ff053337632bca83e42702d"
+checksum = "869b0adbda23651a9c5c0c3d270aac9fcb52e8622a8f2b17e57802d7791962f2"
 
 [[package]]
 name = "env_filter"
@@ -1198,17 +1198,6 @@ version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
-[[package]]
-name = "fd-lock"
-version = "4.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ce92ff622d6dadf7349484f42c93271a0d49b7cc4d466a936405bacbe10aa78"
-dependencies = [
- "cfg-if",
- "rustix",
- "windows-sys 0.59.0",
-]
-
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.8"
@@ -2167,9 +2156,9 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.30.1"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
+checksum = "5d6d0705320c1e6ba1d912b5e37cf18071b6c2e9b7fa8215a1e8a7651966f5d3"
 dependencies = [
  "bitflags 2.11.0",
  "cfg-if",
@@ -2797,9 +2786,9 @@ dependencies = [
 
 [[package]]
 name = "radix_trie"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
+checksum = "3b4431027dcd37fc2a73ef740b5f233aa805897935b8bce0195e41bbf9a3289a"
 dependencies = [
  "endian-type",
  "nibble_vec",
@@ -3280,7 +3269,7 @@ name = "rustpython-host_env"
 version = "0.5.0"
 dependencies = [
  "libc",
- "nix 0.30.1",
+ "nix 0.31.2",
  "num-traits",
  "rustpython-wtf8",
  "termios",
@@ -3450,7 +3439,7 @@ dependencies = [
  "memchr",
  "memmap2",
  "mt19937",
- "nix 0.30.1",
+ "nix 0.31.2",
  "num-complex",
  "num-traits",
  "num_enum",
@@ -3536,7 +3525,7 @@ dependencies = [
  "log",
  "malachite-bigint",
  "memchr",
- "nix 0.30.1",
+ "nix 0.31.2",
  "num-complex",
  "num-integer",
  "num-traits",
@@ -3612,24 +3601,23 @@ checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
 name = "rustyline"
-version = "17.0.2"
+version = "18.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e902948a25149d50edc1a8e0141aad50f54e22ba83ff988cf8f7c9ef07f50564"
+checksum = "4a990b25f351b25139ddc7f21ee3f6f56f86d6846b74ac8fad3a719a287cd4a0"
 dependencies = [
  "bitflags 2.11.0",
  "cfg-if",
  "clipboard-win",
- "fd-lock",
  "home",
  "libc",
  "log",
  "memchr",
- "nix 0.30.1",
+ "nix 0.31.2",
  "radix_trie",
  "unicode-segmentation",
  "unicode-width",
  "utf8parse",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4700,15 +4688,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "windows-sys"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
-dependencies = [
- "windows-targets 0.52.6",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.60.2"
diff --git a/Cargo.toml b/Cargo.toml
index 29a8e1f77..290060fb5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -193,7 +193,7 @@ junction = "1.4.2"
 libc = "0.2.186"
 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"
@@ -213,7 +213,7 @@ radium = "1.1.1"
 rand = "0.9"
 rand_core = { version = "0.9", features = ["os_rng"] }
 rustix = { version = "1.1", features = ["event"] }
-rustyline = "17"
+rustyline = "18"
 serde = { package = "serde_core", version = "1.0.225", default-features = false, features = ["alloc"] }
 schannel = "0.1.29"
 scoped-tls = "1"