diff --git a/core/src/parking_lot.rs b/core/src/parking_lot.rs
index 25e2a30f..fb87aefe 100644
--- a/core/src/parking_lot.rs
+++ b/core/src/parking_lot.rs
@@ -216,8 +216,8 @@ fn create_hashtable() -> &'static HashTable {
     let table = match HASHTABLE.compare_exchange(
         ptr::null_mut(),
         new_table,
-        Ordering::Release,
-        Ordering::Relaxed,
+        Ordering::AcqRel,
+        Ordering::Acquire,
     ) {
         Ok(_) => new_table,
         Err(old_table) => {