diff --git a/.github/workflows/cargo.yml b/.github/workflows/cargo.yml
index bb3e986..69bf1b9 100644
--- a/.github/workflows/cargo.yml
+++ b/.github/workflows/cargo.yml
@@ -39,7 +39,7 @@ jobs:
           components: clippy, rustfmt
           override: true
       - name: Cache cargo registry
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
diff --git a/src/association/mod.rs b/src/association/mod.rs
index fb96025..4f151f1 100644
--- a/src/association/mod.rs
+++ b/src/association/mod.rs
@@ -1344,7 +1344,7 @@ impl Association {
     }
 
     fn handle_forward_tsn(&mut self, c: &ChunkForwardTsn) -> Result<Vec<Packet>> {
-        trace!("[{}] FwdTSN: {}", self.side, c.to_string());
+        trace!("[{}] FwdTSN: {}", self.side, c);
 
         if !self.use_forward_tsn {
             warn!("[{}] received FwdTSN but not enabled", self.side);
@@ -1981,11 +1981,7 @@ impl Association {
             bytes_queued += s.get_num_bytes_in_reassembly_queue() as u32;
         }
 
-        if bytes_queued >= self.max_receive_buffer_size {
-            0
-        } else {
-            self.max_receive_buffer_size - bytes_queued
-        }
+        self.max_receive_buffer_size.saturating_sub(bytes_queued)
     }
 
     /// gather_outbound gathers outgoing packets. The returned bool value set to
diff --git a/src/association/timer.rs b/src/association/timer.rs
index 6ee9fea..094a3af 100644
--- a/src/association/timer.rs
+++ b/src/association/timer.rs
@@ -90,7 +90,7 @@ impl TimerTable {
     }
 
     pub fn is_expired(&mut self, timer: Timer, after: Instant) -> (bool, bool, usize) {
-        let expired = self.data[timer as usize].map_or(false, |x| x <= after);
+        let expired = self.data[timer as usize].is_some_and(|x| x <= after);
         let mut failure = false;
         if expired {
             self.retrans[timer as usize] += 1;
diff --git a/src/packet.rs b/src/packet.rs
index 6a1be88..ddeb933 100644
--- a/src/packet.rs
+++ b/src/packet.rs
@@ -50,7 +50,6 @@ use std::fmt;
 ///+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 ///|                           Checksum                            |
 ///+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
 pub(crate) const PACKET_HEADER_SIZE: usize = 12;
 
 #[derive(Default, Debug)]
diff --git a/src/queue/payload_queue.rs b/src/queue/payload_queue.rs
index 5ee0b62..a7462c0 100644
--- a/src/queue/payload_queue.rs
+++ b/src/queue/payload_queue.rs
@@ -128,7 +128,7 @@ impl PayloadQueue {
     }
 
     pub(crate) fn mark_as_acked(&mut self, tsn: u32) -> usize {
-        let n_bytes_acked = if let Some(c) = self.chunk_map.get_mut(&tsn) {
+        if let Some(c) = self.chunk_map.get_mut(&tsn) {
             c.acked = true;
             c.retransmit = false;
             let n = c.user_data.len();
@@ -137,9 +137,7 @@ impl PayloadQueue {
             n
         } else {
             0
-        };
-
-        n_bytes_acked
+        }
     }
 
     pub(crate) fn get_last_tsn_received(&self) -> Option<&u32> {