diff --git a/.github/workflows/general.yml b/.github/workflows/general.yml
index a2be635..6caccb3 100644
--- a/.github/workflows/general.yml
+++ b/.github/workflows/general.yml
@@ -20,10 +20,10 @@ jobs:
       # Fail the build if there are warnings
       RUSTFLAGS: "-D warnings"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Cache dependencies
         id: cache-dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
@@ -56,10 +56,10 @@ jobs:
           - opentelemetry_0_18
           - opentelemetry_0_19
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Cache dependencies
         id: cache-dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
@@ -80,7 +80,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -95,7 +95,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
diff --git a/src/middleware.rs b/src/middleware.rs
index a820511..3c1a359 100644
--- a/src/middleware.rs
+++ b/src/middleware.rs
@@ -16,7 +16,7 @@ use tracing::Span;
 ///
 /// # Usage
 ///
-/// Register `TracingLogger` as a middleware for your application using `.wrap` on `App`.  
+/// Register `TracingLogger` as a middleware for your application using `.wrap` on `App`.
 /// In this example we add a [`tracing::Subscriber`] to output structured logs to the console.
 ///
 /// ```rust
@@ -119,7 +119,7 @@ where
     fn new_transform(&self, service: S) -> Self::Future {
         ready(Ok(TracingLoggerMiddleware {
             service,
-            root_span_builder: std::marker::PhantomData::default(),
+            root_span_builder: std::marker::PhantomData,
         }))
     }
 }
@@ -240,12 +240,12 @@ fn emit_event_on_error<B: 'static>(outcome: &Result<ServiceResponse<B>, actix_we
         Ok(response) => {
             if let Some(err) = response.response().error() {
                 // use the status code already constructed for the outgoing HTTP response
-                emit_error_event(err.as_response_error(), response.status())
+                emit_error_event(err.as_response_error(), response.status());
             }
         }
         Err(error) => {
             let response_error = error.as_response_error();
-            emit_error_event(response_error, response_error.status_code())
+            emit_error_event(response_error, response_error.status_code());
         }
     }
 }
diff --git a/src/root_span_macro.rs b/src/root_span_macro.rs
index c1c191b..fc8d2cd 100644
--- a/src/root_span_macro.rs
+++ b/src/root_span_macro.rs
@@ -81,6 +81,11 @@ macro_rules! root_span {
                 .get("User-Agent")
                 .map(|h| h.to_str().unwrap_or(""))
                 .unwrap_or("");
+            let referer = $request
+                .headers()
+                .get("Referer")
+                .map(|h| h.to_str().unwrap_or(""))
+                .unwrap_or("");
             let http_route: std::borrow::Cow<'static, str> = $request
                 .match_pattern()
                 .map(Into::into)
@@ -101,6 +106,7 @@ macro_rules! root_span {
                         http.host = %connection_info.host(),
                         http.client_ip = %$request.connection_info().realip_remote_addr().unwrap_or(""),
                         http.user_agent = %user_agent,
+                        http.referer = %referer,
                         http.target = %$request.uri().path_and_query().map(|p| p.as_str()).unwrap_or(""),
                         http.status_code = $crate::root_span_macro::private::tracing::field::Empty,
                         otel.name = %format!("HTTP {} {}", http_method, http_route),
@@ -216,6 +222,6 @@ pub mod private {
     pub fn get_request_id(request: &ServiceRequest) -> RequestId {
         use actix_web::HttpMessage;
 
-        request.extensions().get::<RequestId>().cloned().unwrap()
+        request.extensions().get::<RequestId>().copied().unwrap()
     }
 }