diff --git a/Cargo.toml b/Cargo.toml
index be2177c..d33be09 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,11 +34,11 @@ tempfile = "3"
 tokio = { version = "1", features = ["full"] }
 
 [target."cfg(unix)".dependencies]
-xattr = { version = "0.2", optional = true }
+xattr = { version = "1.0", optional = true }
 libc = "0.2"
 
 [target.'cfg(target_os = "redox")'.dependencies]
-redox_syscall = "0.2"
+redox_syscall = "0.3"
 
 [features]
 default = ["xattr"]
diff --git a/src/entry.rs b/src/entry.rs
index 2f3a1ea..537e5b6 100644
--- a/src/entry.rs
+++ b/src/entry.rs
@@ -854,7 +854,7 @@ impl<R: Read + Unpin> Read for EntryFields<R> {
         cx: &mut Context<'_>,
         into: &mut io::ReadBuf<'_>,
     ) -> Poll<io::Result<()>> {
-        let mut this = self.get_mut();
+        let this = self.get_mut();
         loop {
             if this.read_state.is_none() {
                 this.read_state = this.data.pop_front();