diff --git a/programs/stake/src/stake_state.rs b/programs/stake/src/stake_state.rs
index 4984c66ba..d193cd527 100644
--- a/programs/stake/src/stake_state.rs
+++ b/programs/stake/src/stake_state.rs
@@ -3455,7 +3455,10 @@ mod tests {
             );
         }
         // reset balance
-        stake_keyed_account.account.borrow_mut().lamports = total_lamports;
+        stake_keyed_account
+            .account
+            .borrow_mut()
+            .set_lamports(total_lamports);
 
         // lockup has expired
         let to_keyed_account = KeyedAccount::new(&to, false, &to_account);
diff --git a/runtime/src/accounts_db.rs b/runtime/src/accounts_db.rs
index 7c66dbb7a..861a05d61 100644
--- a/runtime/src/accounts_db.rs
+++ b/runtime/src/accounts_db.rs
@@ -9965,7 +9965,7 @@ pub mod tests {
                         if exit.load(Ordering::Relaxed) {
                             return;
                         }
-                        account.lamports = slot + 1;
+                        account.set_lamports(slot + 1);
                         db.store_cached(slot, &[(&pubkey, &account)]);
                         db.add_root(slot);
                         sleep(Duration::from_millis(RACY_SLEEP_MS));
diff --git a/runtime/src/rent_collector.rs b/runtime/src/rent_collector.rs
index 5d1d8dcd7..8a040b10d 100644
--- a/runtime/src/rent_collector.rs
+++ b/runtime/src/rent_collector.rs
@@ -173,7 +173,7 @@ mod tests {
         let mut collected;
         let pubkey = solana_sdk::pubkey::new_rand();
 
-        account.lamports = huge_lamports;
+        account.set_lamports(huge_lamports);
         assert_eq!(account.rent_epoch(), 0);
 
         // create a tested rent collector
@@ -185,7 +185,7 @@ mod tests {
         assert_eq!(collected, 0);
 
         // decrease the balance not to be rent-exempt
-        account.lamports = tiny_lamports;
+        account.set_lamports(tiny_lamports);
 
         // ... and trigger another rent collection on the same epoch and check that rent is working
         collected = rent_collector.collect_from_existing_account(&pubkey, &mut account);