diff --git a/Cargo.lock b/Cargo.lock
index 6e67ab43089..f3c631c7ab7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1259,7 +1259,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "117725a109d387c937a1533ce01b450cbde6b88abceea8473c4d7a85853cda3c"
 dependencies = [
  "lazy_static",
- "windows-sys 0.48.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -3970,7 +3970,7 @@ checksum = "e04d7f318608d35d4b61ddd75cbdaee86b023ebe2bd5a66ee0915f0bf93095a9"
 dependencies = [
  "hermit-abi",
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -4659,26 +4659,27 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.27.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2eb04e9c688eff1c89d72b407f168cf79bb9e867a9d3323ed6c01519eb9cc053"
+checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
 dependencies = [
  "bitflags 2.9.1",
  "cfg-if",
+ "cfg_aliases",
  "libc",
+ "memoffset",
 ]
 
 [[package]]
 name = "nix"
-version = "0.29.0"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
+checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
 dependencies = [
  "bitflags 2.9.1",
  "cfg-if",
  "cfg_aliases",
  "libc",
- "memoffset",
 ]
 
 [[package]]
@@ -7734,7 +7735,7 @@ dependencies = [
  "hex",
  "humantime",
  "humantime-serde",
- "nix 0.27.1",
+ "nix 0.30.1",
  "nym-async-file-watcher",
  "nym-bin-common",
  "nym-config",
@@ -8726,7 +8727,7 @@ dependencies = [
  "once_cell",
  "socket2 0.5.10",
  "tracing",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -9175,7 +9176,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys 0.4.15",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -10502,7 +10503,7 @@ dependencies = [
  "getrandom 0.3.3",
  "once_cell",
  "rustix 1.0.8",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -12356,7 +12357,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.48.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index a6789bfd9bc..36ec9b5e835 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -294,7 +294,7 @@ ledger-transport-hid = "0.10.0"
 log = "0.4"
 mime = "0.3.17"
 moka = { version = "0.12", features = ["future"] }
-nix = "0.27.1"
+nix = "0.30.1"
 notify = "5.1.0"
 once_cell = "1.21.3"
 opentelemetry = "0.19.0"
diff --git a/tools/nymvisor/src/upgrades/mod.rs b/tools/nymvisor/src/upgrades/mod.rs
index 812ab741d27..9e9cdbe5c5d 100644
--- a/tools/nymvisor/src/upgrades/mod.rs
+++ b/tools/nymvisor/src/upgrades/mod.rs
@@ -6,10 +6,9 @@ use crate::daemon::Daemon;
 use crate::error::NymvisorError;
 use crate::upgrades::download::download_upgrade_binary;
 use crate::upgrades::types::{CurrentVersionInfo, UpgradeHistory, UpgradePlan};
-use nix::fcntl::{FlockArg, flock};
+use nix::fcntl::{Flock, FlockArg};
 use std::fs;
 use std::fs::File;
-use std::os::fd::AsRawFd;
 use std::path::PathBuf;
 use time::OffsetDateTime;
 use tracing::{debug, info};
@@ -58,15 +57,15 @@ pub(crate) async fn perform_upgrade(config: &Config) -> Result<UpgradeResult, Ny
             path: lock_path.clone(),
             source,
         })?;
-    let lock_fd = lock_file.as_raw_fd();
 
     debug!("attempting to acquire the lock");
-    if let Err(err) = flock(lock_fd, FlockArg::LockExclusiveNonblock) {
-        return Err(NymvisorError::UnableToAcquireUpgradePlanLock {
-            lock_path,
-            libc_code: err,
-        });
-    }
+    let _locked_file =
+        Flock::lock(lock_file, FlockArg::LockExclusiveNonblock).map_err(|(_lock_file, err)| {
+            NymvisorError::UnableToAcquireUpgradePlanLock {
+                lock_path: lock_path.clone(),
+                libc_code: err,
+            }
+        })?;
 
     let upgrade_binary_path = config.upgrade_binary(&upgrade_name);