diff --git a/.changeset/yellow-peaches-accept.md b/.changeset/yellow-peaches-accept.md
new file mode 100644
index 00000000..8f6ffde3
--- /dev/null
+++ b/.changeset/yellow-peaches-accept.md
@@ -0,0 +1,5 @@
+---
+'@e2b/code-interpreter-template': patch
+---
+
+pre-load js kernel
diff --git a/template/server/main.py b/template/server/main.py
index b353d514..59b188a2 100644
--- a/template/server/main.py
+++ b/template/server/main.py
@@ -36,9 +36,12 @@ async def lifespan(app: FastAPI):
     client = httpx.AsyncClient()
 
     try:
-        default_context = await create_context(client, websockets, "python", "/home/user")
-        default_websockets["python"] = default_context.id
-        websockets["default"] = websockets[default_context.id]
+        python_context = await create_context(client, websockets, "python", "/home/user")
+        default_websockets["python"] = python_context.id
+        websockets["default"] = websockets[python_context.id]
+
+        javascript_context = await create_context(client, websockets, "javascript", "/home/user")
+        default_websockets["javascript"] = javascript_context.id
 
         logger.info("Connected to default runtime")
         yield