diff --git a/std/atomic/queue.zig b/std/atomic/queue.zig
index 1acecbab2c..69c82236d1 100644
--- a/std/atomic/queue.zig
+++ b/std/atomic/queue.zig
@@ -31,10 +31,10 @@ pub fn Queue(comptime T: type) type {
         }
 
         pub fn get(self: &Self) ?&Node {
-            var head = @atomicLoad(&Node, &self.head, AtomicOrder.Acquire);
+            var head = @atomicLoad(&Node, &self.head, AtomicOrder.SeqCst);
             while (true) {
                 const node = head.next ?? return null;
-                head = @cmpxchgWeak(&Node, &self.head, head, node, AtomicOrder.Release, AtomicOrder.Acquire) ?? return node;
+                head = @cmpxchgWeak(&Node, &self.head, head, node, AtomicOrder.SeqCst, AtomicOrder.SeqCst) ?? return node;
             }
         }
     };
@@ -56,7 +56,7 @@ test "std.atomic.queue" {
     var direct_allocator = std.heap.DirectAllocator.init();
     defer direct_allocator.deinit();
 
-    var plenty_of_memory = try direct_allocator.allocator.alloc(u8, 64 * 1024 * 1024);
+    var plenty_of_memory = try direct_allocator.allocator.alloc(u8, 600 * 1024);
     defer direct_allocator.allocator.free(plenty_of_memory);
 
     var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);
diff --git a/std/atomic/stack.zig b/std/atomic/stack.zig
index accbcc942a..96185d308b 100644
--- a/std/atomic/stack.zig
+++ b/std/atomic/stack.zig
@@ -35,7 +35,7 @@ pub fn Stack(comptime T: type) type {
         }
 
         pub fn pop(self: &Self) ?&Node {
-            var root = @atomicLoad(?&Node, &self.root, AtomicOrder.Acquire);
+            var root = @atomicLoad(?&Node, &self.root, AtomicOrder.SeqCst);
             while (true) {
                 root = @cmpxchgWeak(?&Node, &self.root, root, (root ?? return null).next, AtomicOrder.SeqCst, AtomicOrder.SeqCst) ?? return root;
             }
@@ -63,7 +63,7 @@ test "std.atomic.stack" {
     var direct_allocator = std.heap.DirectAllocator.init();
     defer direct_allocator.deinit();
 
-    var plenty_of_memory = try direct_allocator.allocator.alloc(u8, 64 * 1024 * 1024);
+    var plenty_of_memory = try direct_allocator.allocator.alloc(u8, 600 * 1024);
     defer direct_allocator.allocator.free(plenty_of_memory);
 
     var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);