diff --git a/bundler/Cargo.toml b/bundler/Cargo.toml
index 501d96dcb0e..0f2610bd3cf 100644
--- a/bundler/Cargo.toml
+++ b/bundler/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 license = "Apache-2.0/MIT"
 name = "swc_bundler"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.14.1"
+version = "0.15.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
diff --git a/bundler/src/bundler/chunk/merge.rs b/bundler/src/bundler/chunk/merge.rs
index c490b313bc1..4634aca66d2 100644
--- a/bundler/src/bundler/chunk/merge.rs
+++ b/bundler/src/bundler/chunk/merge.rs
@@ -322,6 +322,12 @@ where
                 if !is_direct {
                     prepend_stmts(&mut entry.body, injector.imported.into_iter());
 
+                    log::debug!(
+                        "Merged {} into {} as a transitive es module",
+                        dep_info.fm.name,
+                        info.fm.name,
+                    );
+
                     // print_hygiene("ES6", &self.cm, &entry);
                     continue;
                 }
diff --git a/bundler/src/bundler/chunk/plan/lca.rs b/bundler/src/bundler/chunk/plan/lca.rs
index 802a8f784ab..a410790ae76 100644
--- a/bundler/src/bundler/chunk/plan/lca.rs
+++ b/bundler/src/bundler/chunk/plan/lca.rs
@@ -29,6 +29,13 @@ pub(super) fn least_common_ancestor(b: &PlanBuilder, module_ids: &[ModuleId]) ->
             return first;
         }
 
+        if b.direct_deps.contains_edge(first, second) {
+            return second;
+        }
+        if b.direct_deps.contains_edge(second, first) {
+            return first;
+        }
+
         if let Some(id) = check_itself_and_parent(b, &[first], &[second]) {
             log::debug!("Found lca: {:?}", id);
             return id;
diff --git a/bundler/src/bundler/chunk/plan/mod.rs b/bundler/src/bundler/chunk/plan/mod.rs
index 4d2c78ac64f..9c1ce0a94a6 100644
--- a/bundler/src/bundler/chunk/plan/mod.rs
+++ b/bundler/src/bundler/chunk/plan/mod.rs
@@ -11,6 +11,7 @@ use petgraph::{
     EdgeDirection::{Incoming, Outgoing},
 };
 use std::{
+    cmp::Ordering,
     collections::{hash_map::Entry, HashMap, HashSet},
     ops::{Deref, DerefMut},
 };
@@ -383,6 +384,13 @@ where
             }
         }
 
+        // Sort transitive chunks topologically.
+        for (_, normal_plan) in &mut plans.normal {
+            normal_plan
+                .transitive_chunks
+                .sort_by(|a, b| toposort(&builder, *a, *b));
+        }
+
         // Handle circular imports
         for (root_entry, _) in builder.kinds.iter() {
             let mut bfs = Bfs::new(&builder.direct_deps, *root_entry);
@@ -461,6 +469,7 @@ where
         }
 
         // dbg!(&plans);
+
         plans
     }
 
@@ -538,3 +547,17 @@ where
         }
     }
 }
+
+/// Compare topology of `i` and `k`.
+fn toposort(b: &PlanBuilder, i: ModuleId, j: ModuleId) -> Ordering {
+    //
+    let higher = least_common_ancestor(b, &[i, j]);
+
+    if higher == i {
+        Ordering::Greater
+    } else if higher == j {
+        Ordering::Less
+    } else {
+        Ordering::Equal
+    }
+}
diff --git a/bundler/src/bundler/chunk/plan/tests.rs b/bundler/src/bundler/chunk/plan/tests.rs
index 4e5ee67b26c..dbc9ae2781f 100644
--- a/bundler/src/bundler/chunk/plan/tests.rs
+++ b/bundler/src/bundler/chunk/plan/tests.rs
@@ -645,7 +645,7 @@ fn deno_001() {
 
             dbg!(&p);
 
-            assert_normal_transitive(t, &p, "main", &["http-server"], &["io-bufio"]);
+            assert_normal_transitive(t, &p, "main", &["http-server"], &[]);
             assert_normal(t, &p, "io-bufio", &[]);
 
             assert_circular(t, &p, "http-server", &["_io"]);
@@ -798,27 +798,27 @@ fn deno_002() {
 
             dbg!(&p);
 
-            assert_normal_transitive(
-                t,
-                &p,
-                "main",
-                &["http-server"],
-                &["encoding-utf8", "io-bufio", "_util-assert"],
-            );
+            assert_normal_transitive(t, &p, "main", &["http-server"], &[]);
 
             assert_normal_transitive(t, &p, "http-server", &["async-mod"], &[]);
             assert_circular(t, &p, "http-server", &["http-_io"]);
 
             assert_normal(t, &p, "encoding-utf8", &[]);
 
-            assert_normal(t, &p, "io-bufio", &["bytes-mod"]);
+            assert_normal(t, &p, "io-bufio", &[]);
 
             assert_normal(t, &p, "_util-assert", &[]);
 
             assert_normal(t, &p, "http-_io", &["textproto-mod", "http-http_status"]);
             assert_circular(t, &p, "http-_io", &["http-server"]);
 
-            assert_normal(t, &p, "textproto-mod", &[]);
+            assert_normal_transitive(
+                t,
+                &p,
+                "textproto-mod",
+                &["bytes-mod"],
+                &["encoding-utf8", "io-bufio"],
+            );
 
             assert_normal(t, &p, "_util-assert", &[]);
 
diff --git a/bundler/src/id.rs b/bundler/src/id.rs
index 6c590378758..38b7b72f4ae 100644
--- a/bundler/src/id.rs
+++ b/bundler/src/id.rs
@@ -8,7 +8,7 @@ use swc_common::{sync::Lock, FileName, Mark, SyntaxContext, DUMMY_SP};
 use swc_ecma_ast::Ident;
 use swc_ecma_utils::ident::IdentLike;
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct ModuleId(u32);
 
 impl fmt::Display for ModuleId {
@@ -17,6 +17,13 @@ impl fmt::Display for ModuleId {
     }
 }
 
+impl fmt::Debug for ModuleId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "ModuleId({})", self.0)?;
+        Ok(())
+    }
+}
+
 #[derive(Debug, Default)]
 pub(crate) struct ModuleIdGenerator {
     v: AtomicU32,
diff --git a/bundler/tests/deno.rs b/bundler/tests/deno.rs
index ff61dd95488..55d389916b9 100644
--- a/bundler/tests/deno.rs
+++ b/bundler/tests/deno.rs
@@ -6,6 +6,7 @@ use anyhow::{Context, Error};
 use sha1::{Digest, Sha1};
 use std::{
     collections::HashMap,
+    env,
     fs::{create_dir_all, read_to_string, write},
     path::PathBuf,
     process::{Command, Stdio},
@@ -20,43 +21,38 @@ use swc_ecma_visit::FoldWith;
 use url::Url;
 
 #[test]
-#[ignore = "deno is not installed"]
 fn oak_6_3_1_application() {
     run("https://deno.land/x/oak@v6.3.1/application.ts", None);
 }
 
 #[test]
-#[ignore = "deno is not installed"]
 fn oak_6_3_1_mod() {
     run("https://deno.land/x/oak@v6.3.1/mod.ts", None);
 }
 
 #[test]
-#[ignore = "deno is not installed"]
 fn std_0_74_9_http_server() {
     run("https://deno.land/std@0.74.0/http/server.ts", None);
 }
 
 #[test]
-#[ignore]
+#[ignore = "Does not finish by default"]
 fn oak_6_3_1_example_server() {
     run("https://deno.land/x/oak@v6.3.1/examples/server.ts", None);
 }
 
 #[test]
-#[ignore]
+#[ignore = "Does not finish by default"]
 fn oak_6_3_1_example_sse_server() {
     run("https://deno.land/x/oak@v6.3.1/examples/sseServer.ts", None);
 }
 
 #[test]
-#[ignore = "deno is not installed"]
 fn std_0_75_0_http_server() {
     run("https://deno.land/std@0.75.0/http/server.ts", None);
 }
 
 #[test]
-#[ignore = "deno is not installed"]
 fn deno_8188() {
     run(
         "https://raw.githubusercontent.com/nats-io/nats.ws/master/src/mod.ts",
@@ -65,11 +61,15 @@ fn deno_8188() {
 }
 
 #[test]
-#[ignore = "deno is not installed"]
 fn deno_8189() {
     run("https://deno.land/x/lz4/mod.ts", None);
 }
 
+#[test]
+fn deno_8211() {
+    run("https://unpkg.com/luxon@1.25.0/src/luxon.js", None);
+}
+
 fn run(url: &str, expeceted_bytes: Option<usize>) {
     let dir = tempfile::tempdir().expect("failed to crate temp file");
     let path = dir.path().join("main.js");
@@ -81,6 +81,10 @@ fn run(url: &str, expeceted_bytes: Option<usize>) {
         assert_eq!(src.len(), expected);
     }
 
+    if env::var("CI").is_ok() {
+        return;
+    }
+
     let output = Command::new("deno")
         .arg("run")
         .arg("--allow-all")
diff --git a/bundler/tests/fixture/deno-8211-1/input/entry.ts b/bundler/tests/fixture/deno-8211-1/input/entry.ts
new file mode 100644
index 00000000000..f44f45f1b27
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-1/input/entry.ts
@@ -0,0 +1,7 @@
+import FixedOffsetZone from "./fixedOffsetZone";
+import Zone from "./zone";
+
+export {
+    Zone,
+    FixedOffsetZone,
+};
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-1/input/fixedOffsetZone.ts b/bundler/tests/fixture/deno-8211-1/input/fixedOffsetZone.ts
new file mode 100644
index 00000000000..657de08acfa
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-1/input/fixedOffsetZone.ts
@@ -0,0 +1,3 @@
+import Zone from "./zone";
+
+export default class FixedOffsetZone extends Zone { }
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-1/input/zone.ts b/bundler/tests/fixture/deno-8211-1/input/zone.ts
new file mode 100644
index 00000000000..b5bdb997a19
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-1/input/zone.ts
@@ -0,0 +1 @@
+export default class Zone { }
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-1/output/entry.ts b/bundler/tests/fixture/deno-8211-1/output/entry.ts
new file mode 100644
index 00000000000..170d1f862f5
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-1/output/entry.ts
@@ -0,0 +1,5 @@
+class Zone {
+}
+class FixedOffsetZone extends Zone {
+}
+export { Zone, FixedOffsetZone };
diff --git a/bundler/tests/fixture/deno-8211-2/input/entry.ts b/bundler/tests/fixture/deno-8211-2/input/entry.ts
new file mode 100644
index 00000000000..9233d164d1d
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-2/input/entry.ts
@@ -0,0 +1,9 @@
+import Info from "./info";
+import Zone from "./zone";
+import FixedOffsetZone from "./fixedOffsetZone";
+
+export {
+    Zone,
+    Info,
+    FixedOffsetZone,
+};
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-2/input/fixedOffsetZone.ts b/bundler/tests/fixture/deno-8211-2/input/fixedOffsetZone.ts
new file mode 100644
index 00000000000..657de08acfa
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-2/input/fixedOffsetZone.ts
@@ -0,0 +1,3 @@
+import Zone from "./zone";
+
+export default class FixedOffsetZone extends Zone { }
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-2/input/info.ts b/bundler/tests/fixture/deno-8211-2/input/info.ts
new file mode 100644
index 00000000000..f0574a00467
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-2/input/info.ts
@@ -0,0 +1,8 @@
+import FixedOffsetZone from "./fixedOffsetZone";
+
+
+export default class Info {
+    use() {
+        console.log(FixedOffsetZone)
+    }
+}
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-2/input/zone.ts b/bundler/tests/fixture/deno-8211-2/input/zone.ts
new file mode 100644
index 00000000000..b5bdb997a19
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-2/input/zone.ts
@@ -0,0 +1 @@
+export default class Zone { }
\ No newline at end of file
diff --git a/bundler/tests/fixture/deno-8211-2/output/entry.ts b/bundler/tests/fixture/deno-8211-2/output/entry.ts
new file mode 100644
index 00000000000..62110dcf8b2
--- /dev/null
+++ b/bundler/tests/fixture/deno-8211-2/output/entry.ts
@@ -0,0 +1,10 @@
+class Zone {
+}
+class FixedOffsetZone extends Zone {
+}
+class Info {
+    use() {
+        console.log(FixedOffsetZone);
+    }
+}
+export { Zone, Info, FixedOffsetZone };