diff --git a/collator/src/collator/do_collate.rs b/collator/src/collator/do_collate.rs
index dc869ef6e..fd569710c 100644
--- a/collator/src/collator/do_collate.rs
+++ b/collator/src/collator/do_collate.rs
@@ -1228,7 +1228,9 @@ fn new_transaction(
     );
 
     collation_data.execute_count_all += 1;
-    collation_data.block_limit.gas_used += executor_output.gas_used as u32;
+
+    let gas_used = &mut collation_data.block_limit.gas_used;
+    *gas_used = gas_used.saturating_add(executor_output.gas_used.try_into().unwrap_or(u32::MAX));
 
     let import_fees;
     let in_msg_hash = *in_msg.cell.repr_hash();
diff --git a/collator/src/collator/types.rs b/collator/src/collator/types.rs
index 4f517c3f9..c97416971 100644
--- a/collator/src/collator/types.rs
+++ b/collator/src/collator/types.rs
@@ -423,6 +423,7 @@ pub(super) struct BlockCollationData {
     // TODO: set from anchor
     pub created_by: HashBytes,
 }
+
 #[derive(Debug)]
 pub struct BlockLimitStats {
     pub gas_used: u32,
@@ -485,7 +486,7 @@ impl BlockLimitStats {
             ..
         } = lt_delta;
 
-        let delta_lt = (self.lt_current - self.lt_start) as u32;
+        let delta_lt = u32::try_from(self.lt_current - self.lt_start).unwrap_or(u32::MAX);
         if delta_lt >= *hard_limit {
             return true;
         }