diff --git a/src/memory.rs b/src/memory.rs
index 30b1f00..96fde14 100644
--- a/src/memory.rs
+++ b/src/memory.rs
@@ -238,11 +238,10 @@ impl MemoryRegion {
     }
 
     pub fn update(&self, data: &[u8]) {
-        let gens: Vec<u64> = self
+        let gens = self
             .gens
-            .iter()
-            .map(|i| i.load(std::sync::atomic::Ordering::Acquire))
-            .collect();
+            .each_ref()
+            .map(|i| i.load(std::sync::atomic::Ordering::Acquire));
         let next_gen = gens.iter().max().unwrap() + 1;
         let indices = gens
             .into_iter()