diff --git a/actix-http/src/h1/dispatcher.rs b/actix-http/src/h1/dispatcher.rs
index bfbcaf24c..a24a6bb07 100644
--- a/actix-http/src/h1/dispatcher.rs
+++ b/actix-http/src/h1/dispatcher.rs
@@ -706,7 +706,7 @@ where
 
                             req.head_mut().peer_addr = *this.peer_addr;
 
-                            req.conn_data = this.conn_data.as_ref().map(Rc::clone);
+                            req.conn_data = this.conn_data.clone();
 
                             match this.codec.message_type() {
                                 // request has no payload
diff --git a/actix-http/src/h2/dispatcher.rs b/actix-http/src/h2/dispatcher.rs
index 022239c2d..97ceb51e9 100644
--- a/actix-http/src/h2/dispatcher.rs
+++ b/actix-http/src/h2/dispatcher.rs
@@ -126,7 +126,7 @@ where
                     head.headers = parts.headers.into();
                     head.peer_addr = this.peer_addr;
 
-                    req.conn_data = this.conn_data.as_ref().map(Rc::clone);
+                    req.conn_data = this.conn_data.clone();
 
                     let fut = this.flow.service.call(req);
                     let config = this.config.clone();
diff --git a/actix-http/src/header/utils.rs b/actix-http/src/header/utils.rs
index f4f34d347..caaab3b1e 100644
--- a/actix-http/src/header/utils.rs
+++ b/actix-http/src/header/utils.rs
@@ -80,18 +80,18 @@ mod tests {
 
     #[test]
     fn comma_delimited_parsing() {
-        let headers = vec![];
+        let headers = [];
         let res: Vec<usize> = from_comma_delimited(headers.iter()).unwrap();
         assert_eq!(res, vec![0; 0]);
 
-        let headers = vec![
+        let headers = [
             HeaderValue::from_static("1, 2"),
             HeaderValue::from_static("3,4"),
         ];
         let res: Vec<usize> = from_comma_delimited(headers.iter()).unwrap();
         assert_eq!(res, vec![1, 2, 3, 4]);
 
-        let headers = vec![
+        let headers = [
             HeaderValue::from_static(""),
             HeaderValue::from_static(","),
             HeaderValue::from_static("  "),
diff --git a/actix-http/src/notify_on_drop.rs b/actix-http/src/notify_on_drop.rs
index 98544bb5d..95904b28e 100644
--- a/actix-http/src/notify_on_drop.rs
+++ b/actix-http/src/notify_on_drop.rs
@@ -5,7 +5,7 @@
 use std::cell::RefCell;
 
 thread_local! {
-    static NOTIFY_DROPPED: RefCell<Option<bool>> = RefCell::new(None);
+    static NOTIFY_DROPPED: RefCell<Option<bool>> = const { RefCell::new(None) };
 }
 
 /// Check if the spawned task is dropped.