diff --git a/crates/puffin-resolver/src/resolver.rs b/crates/puffin-resolver/src/resolver.rs
index 8de0d46a4..b81216c00 100644
--- a/crates/puffin-resolver/src/resolver.rs
+++ b/crates/puffin-resolver/src/resolver.rs
@@ -531,10 +531,21 @@ impl<'a, Context: BuildContext> Resolver<'a, Context> {
                             if let Ok(name) = WheelFilename::from_str(file.filename.as_str()) {
                                 if name.is_compatible(self.tags) {
                                     let version = PubGrubVersion::from(name.version);
-                                    if let std::collections::btree_map::Entry::Vacant(entry) =
-                                        version_map.entry(version)
-                                    {
-                                        entry.insert(DistributionFile::from(WheelFile::from(file)));
+
+                                    match version_map.entry(version) {
+                                        std::collections::btree_map::Entry::Occupied(mut entry) => {
+                                            if let DistributionFile::Sdist(_) = entry.get() {
+                                                // Wheels get precedence over source distributions
+                                                entry.insert(DistributionFile::from(
+                                                    WheelFile::from(file),
+                                                ));
+                                            }
+                                        }
+                                        std::collections::btree_map::Entry::Vacant(entry) => {
+                                            entry.insert(DistributionFile::from(WheelFile::from(
+                                                file,
+                                            )));
+                                        }
                                     }
                                 }
                             } else if let Ok(name) = SourceDistributionFilename::parse(
diff --git a/crates/puffin-resolver/src/selector.rs b/crates/puffin-resolver/src/selector.rs
index cde952332..30a3caff0 100644
--- a/crates/puffin-resolver/src/selector.rs
+++ b/crates/puffin-resolver/src/selector.rs
@@ -153,13 +153,16 @@ impl CandidateSelector {
                             file: file.clone(),
                         });
                     }
-                    DistributionFile::Sdist(_) => {
+                    DistributionFile::Sdist(_) if sdist.is_none() => {
                         sdist = Some(Candidate {
                             package_name: package_name.clone(),
                             version: version.clone(),
                             file: file.clone(),
                         });
                     }
+                    DistributionFile::Sdist(_) => {
+                        // We already selected a more recent source distribution
+                    }
                 }
             }
         }
diff --git a/scripts/benchmarks/requirements/mst.in b/scripts/benchmarks/requirements/mst.in
new file mode 100644
index 000000000..b3ee1de8b
--- /dev/null
+++ b/scripts/benchmarks/requirements/mst.in
@@ -0,0 +1 @@
+meine_stadt_transparent
\ No newline at end of file