diff --git a/src/deb/mod.rs b/src/deb/mod.rs
index 968c74d..6e3015c 100644
--- a/src/deb/mod.rs
+++ b/src/deb/mod.rs
@@ -129,7 +129,7 @@ mod tests {
         let package_info = crate::package_info::lookup(package, None, Some(series), "", dist, None)
             .await
             .expect("Cannot lookup package information");
-        crate::pull::pull(&package_info, Some(series), Some(cwd), None)
+        crate::pull::pull(&package_info, Some(cwd), None)
             .await
             .expect("Cannot pull package");
         log::info!("Successfully pulled package {}", package);
diff --git a/src/main.rs b/src/main.rs
index 6dde415..f137dd4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -111,7 +111,7 @@ fn main() {
                     Some(&progress_callback),
                 )
                 .await?;
-                pkh::pull::pull(&package_info, series, None, Some(&progress_callback)).await
+                pkh::pull::pull(&package_info, None, Some(&progress_callback)).await
             }) {
                 pb.finish_and_clear();
                 error!("{}", e);
diff --git a/src/package_info.rs b/src/package_info.rs
index 774f69b..3113523 100644
--- a/src/package_info.rs
+++ b/src/package_info.rs
@@ -56,7 +56,8 @@ fn parse_series_csv(content: &str) -> Result<Vec<String>, Box<dyn Error>> {
     Ok(entries.into_iter().map(|(s, _)| s).collect())
 }
 
-async fn get_ordered_series(dist: &str) -> Result<Vec<String>, Box<dyn Error>> {
+/// Get time-ordered list of series for a distribution, development series first
+pub async fn get_ordered_series(dist: &str) -> Result<Vec<String>, Box<dyn Error>> {
     let content = if Path::new(format!("/usr/share/distro-info/{dist}.csv").as_str()).exists() {
         std::fs::read_to_string(format!("/usr/share/distro-info/{dist}.csv"))?
     } else {
@@ -71,9 +72,8 @@ async fn get_ordered_series(dist: &str) -> Result<Vec<String>, Box<dyn Error>> {
 
     let mut series = parse_series_csv(&content)?;
 
-    // For Debian, ensure 'sid' is first if it's not (it usually doesn't have a date or is very old/new depending on file)
-    // Actually in the file sid has 1993 date.
-    // But we want to try 'sid' (unstable) first for Debian.
+    // For Debian, ensure 'sid' is first if it's not
+    // We want to try 'sid' (unstable) first for Debian.
     if dist == "debian" {
         series.retain(|s| s != "sid");
         series.insert(0, "sid".to_string());
diff --git a/src/pull.rs b/src/pull.rs
index d59698a..cfbaa1e 100644
--- a/src/pull.rs
+++ b/src/pull.rs
@@ -339,11 +339,11 @@ async fn fetch_archive_sources(
 /// The source will be extracted under 'package/package'.
 pub async fn pull(
     package_info: &PackageInfo,
-    series: Option<&str>,
     cwd: Option<&Path>,
     progress: ProgressCallback<'_>,
 ) -> Result<(), Box<dyn Error>> {
     let package = &package_info.stanza.package;
+    let series = &package_info.series;
     let package_dir = if let Some(path) = cwd {
         path.join(package)
     } else {
@@ -355,11 +355,14 @@ pub async fn pull(
         // We have found a preferred VCS (git repository) for the package, so
         // we fetch the package from that repo.
 
-        // Depending on target series, we pick target branch; if no series is specified,
+        // Depending on target series, we pick target branch; if latest series is specified,
         // we target the development branch, i.e. the default branch
-        let branch_name = if let Some(s) = series {
+        let branch_name = if crate::package_info::get_ordered_series(package_info.dist.as_str())
+            .await?[0]
+            != *series
+        {
             if package_info.dist == "ubuntu" {
-                Some(format!("{}/{}", package_info.dist, s))
+                Some(format!("{}/{}", package_info.dist, series))
             } else {
                 // Debian does not have reliable branch naming...
                 // For now, we skip that part and clone default
@@ -438,7 +441,7 @@ mod tests {
         let info = crate::package_info::lookup(package, None, series, "", dist, None)
             .await
             .unwrap();
-        pull(&info, series, Some(cwd), None).await.unwrap();
+        pull(&info, Some(cwd), None).await.unwrap();
 
         let package_dir = cwd.join(package);
         assert!(package_dir.exists());