diff --git a/Cargo.toml b/Cargo.toml
index c17ae8232c..c2aa8dee9e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,6 @@ getset = "0.1.1"
 strum = "0.26.2"
 strum_macros = "0.26.2"
 regex = "~1.10.5"
-once_cell = "~1.19.0"
 
 [dev-dependencies]
 tempfile = "3.2.0"
diff --git a/src/runtime/process.rs b/src/runtime/process.rs
index 20d197a1c1..79ef8544fc 100644
--- a/src/runtime/process.rs
+++ b/src/runtime/process.rs
@@ -4,10 +4,10 @@ use crate::{
 };
 use derive_builder::Builder;
 use getset::{CopyGetters, Getters, MutGetters, Setters};
-use once_cell::sync::Lazy;
 use regex::Regex;
 use serde::{de, Deserialize, Deserializer, Serialize};
 use std::path::PathBuf;
+use std::sync::OnceLock;
 use strum_macros::{Display as StrumDisplay, EnumString};
 
 #[derive(
@@ -623,12 +623,16 @@ where
     Ok(value)
 }
 
-static EXEC_CPU_AFFINITY_REGEX: Lazy<Regex> = Lazy::new(|| {
-    Regex::new(r"^(\d+(-\d+)?)(,\d+(-\d+)?)*$").expect("Failed to create regex for execCPUAffinity")
-});
+fn exec_cpu_affinity_regex() -> &'static Regex {
+    static EXEC_CPU_AFFINITY_REGEX: OnceLock<Regex> = OnceLock::new();
+    EXEC_CPU_AFFINITY_REGEX.get_or_init(|| {
+        Regex::new(r"^(\d+(-\d+)?)(,\d+(-\d+)?)*$")
+            .expect("Failed to create regex for execCPUAffinity")
+    })
+}
 
 fn validate_cpu_affinity(s: &str) -> Result<(), String> {
-    if !EXEC_CPU_AFFINITY_REGEX.is_match(s) {
+    if !exec_cpu_affinity_regex().is_match(s) {
         return Err(format!("Invalid execCPUAffinity format: {}", s));
     }