diff --git a/Cargo.lock b/Cargo.lock
index f2ac12f..3097286 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -367,9 +367,12 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.20.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33ea5043e58958ee56f3e15a90aee535795cd7dfd319846288d93c5b57d85cbe"
+checksum = "82881c4be219ab5faaf2ad5e5e5ecdff8c66bd7402ca3160975c93b24961afd1"
+dependencies = [
+ "portable-atomic",
+]
 
 [[package]]
 name = "option-ext"
@@ -395,6 +398,12 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc9c68a3f6da06753e9335d63e27f6b9754dd1920d941135b7ea8224f141adb2"
+
 [[package]]
 name = "predicates"
 version = "3.1.2"
diff --git a/nix-script/Cargo.toml b/nix-script/Cargo.toml
index e68e496..ba3464b 100644
--- a/nix-script/Cargo.toml
+++ b/nix-script/Cargo.toml
@@ -12,7 +12,7 @@ fs2 = "0.4.3"
 lazy_static = "1.5.0"
 log = "0.4.22"
 nix-script-directives = { path = "../nix-script-directives" }
-once_cell = "1.20.0"
+once_cell = "1.20.1"
 path-absolutize = "3.1.1"
 seahash = "4.1.0"
 serde_json = "1.0.128"