diff --git a/projects/fal/pyproject.toml b/projects/fal/pyproject.toml
index 6394f75b..d2c9cdf6 100644
--- a/projects/fal/pyproject.toml
+++ b/projects/fal/pyproject.toml
@@ -23,7 +23,7 @@ readme = "README.md"
 requires-python = ">=3.8"
 dependencies = [
     "isolate[build]>=0.15.0,<0.16.0",
-    "isolate-proto>=0.6.0,<0.7.0",
+    "isolate-proto>=0.6.4,<0.7.0",
     "grpcio==1.64.0",
     "dill==0.3.7",
     "cloudpickle==3.0.0",
diff --git a/projects/fal/src/fal/api.py b/projects/fal/src/fal/api.py
index 5005bd4b..96d88ac1 100644
--- a/projects/fal/src/fal/api.py
+++ b/projects/fal/src/fal/api.py
@@ -403,6 +403,7 @@ class FalServerlessHost(Host):
             "setup_function",
             "metadata",
             "request_timeout",
+            "startup_timeout",
             "_base_image",
             "_scheduler",
             "_scheduler_options",
@@ -452,6 +453,7 @@ def register(
         max_multiplexing = options.host.get("max_multiplexing")
         exposed_port = options.get_exposed_port()
         request_timeout = options.host.get("request_timeout")
+        startup_timeout = options.host.get("startup_timeout")
         machine_requirements = MachineRequirements(
             machine_types=machine_type,  # type: ignore
             num_gpus=options.host.get("num_gpus"),
@@ -464,6 +466,7 @@ def register(
             max_concurrency=max_concurrency,
             min_concurrency=min_concurrency,
             request_timeout=request_timeout,
+            startup_timeout=startup_timeout,
         )
 
         partial_func = _prepare_partial_func(func)
@@ -526,7 +529,7 @@ def _run(
         exposed_port = options.get_exposed_port()
         setup_function = options.host.get("setup_function", None)
         request_timeout = options.host.get("request_timeout")
-
+        startup_timeout = options.host.get("startup_timeout")
         machine_requirements = MachineRequirements(
             machine_types=machine_type,  # type: ignore
             num_gpus=options.host.get("num_gpus"),
@@ -539,6 +542,7 @@ def _run(
             max_concurrency=max_concurrency,
             min_concurrency=min_concurrency,
             request_timeout=request_timeout,
+            startup_timeout=startup_timeout,
         )
 
         return_value = _UNSET
@@ -705,6 +709,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
@@ -732,6 +737,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
@@ -809,6 +815,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
@@ -841,6 +848,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
@@ -867,6 +875,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
@@ -893,6 +902,7 @@ def function(
     max_multiplexing: int = FAL_SERVERLESS_DEFAULT_MAX_MULTIPLEXING,
     min_concurrency: int = FAL_SERVERLESS_DEFAULT_MIN_CONCURRENCY,
     request_timeout: int | None = None,
+    startup_timeout: int | None = None,
     setup_function: Callable[..., None] | None = None,
     _base_image: str | None = None,
     _scheduler: str | None = None,
diff --git a/projects/fal/src/fal/app.py b/projects/fal/src/fal/app.py
index 25934ead..f8c4d84d 100644
--- a/projects/fal/src/fal/app.py
+++ b/projects/fal/src/fal/app.py
@@ -271,6 +271,7 @@ class App(fal.api.BaseServable):
     app_name: ClassVar[str]
     app_auth: ClassVar[Literal["private", "public", "shared"]] = "private"
     request_timeout: ClassVar[int | None] = None
+    startup_timeout: ClassVar[int | None] = None
 
     isolate_channel: async_grpc.Channel | None = None
 
@@ -282,6 +283,9 @@ def __init_subclass__(cls, **kwargs):
         if cls.request_timeout is not None:
             cls.host_kwargs["request_timeout"] = cls.request_timeout
 
+        if cls.startup_timeout is not None:
+            cls.host_kwargs["startup_timeout"] = cls.startup_timeout
+
         cls.app_name = getattr(cls, "app_name", app_name)
 
         if cls.__init__ is not App.__init__:
diff --git a/projects/fal/src/fal/sdk.py b/projects/fal/src/fal/sdk.py
index 6a631e82..2f6ed7af 100644
--- a/projects/fal/src/fal/sdk.py
+++ b/projects/fal/src/fal/sdk.py
@@ -402,6 +402,7 @@ class MachineRequirements:
     max_multiplexing: int | None = None
     min_concurrency: int | None = None
     request_timeout: int | None = None
+    startup_timeout: int | None = None
 
     def __post_init__(self):
         if isinstance(self.machine_types, str):
@@ -519,6 +520,7 @@ def register(
                 min_concurrency=machine_requirements.min_concurrency,
                 max_multiplexing=machine_requirements.max_multiplexing,
                 request_timeout=machine_requirements.request_timeout,
+                startup_timeout=machine_requirements.startup_timeout,
             )
         else:
             wrapped_requirements = None
@@ -614,6 +616,7 @@ def run(
                 max_multiplexing=machine_requirements.max_multiplexing,
                 min_concurrency=machine_requirements.min_concurrency,
                 request_timeout=machine_requirements.request_timeout,
+                startup_timeout=machine_requirements.startup_timeout,
             )
         else:
             wrapped_requirements = None