diff --git a/src/lock.rs b/src/lock.rs
--- a/src/lock.rs
+++ b/src/lock.rs
@@ -132,10 +132,10 @@ impl ScopedDirLock {
 
         // Lock
         match (opts.exclusive, opts.non_blocking) {
-            (true, false) => file.lock_exclusive(),
-            (true, true) => file.try_lock_exclusive(),
-            (false, false) => file.lock_shared(),
-            (false, true) => file.try_lock_shared(),
+            (true, false) => fs2::FileExt::lock_exclusive(&file),
+            (true, true) => fs2::FileExt::try_lock_exclusive(&file),
+            (false, false) => fs2::FileExt::lock_shared(&file),
+            (false, true) => fs2::FileExt::try_lock_shared(&file),
         }
         .context(&path, || {
             format!(