diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2437b419..dd88ece2 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.4.0"
+  ".": "3.4.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f32851d..d4198084 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 3.4.1 (2025-02-15)
+
+Full Changelog: [v3.4.0...v3.4.1](https://github.com/orbcorp/orb-python/compare/v3.4.0...v3.4.1)
+
+### Bug Fixes
+
+* asyncify on non-asyncio runtimes ([#538](https://github.com/orbcorp/orb-python/issues/538)) ([a07f92d](https://github.com/orbcorp/orb-python/commit/a07f92dacc0153fb06e800af73d1f728f41a3dbf))
+
 ## 3.4.0 (2025-02-14)
 
 Full Changelog: [v3.3.0...v3.4.0](https://github.com/orbcorp/orb-python/compare/v3.3.0...v3.4.0)
diff --git a/pyproject.toml b/pyproject.toml
index 7d09ebc8..a3b0ee9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "orb-billing"
-version = "3.4.0"
+version = "3.4.1"
 description = "The official Python library for the orb API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/orb/_utils/_sync.py b/src/orb/_utils/_sync.py
index 8b3aaf2b..ad7ec71b 100644
--- a/src/orb/_utils/_sync.py
+++ b/src/orb/_utils/_sync.py
@@ -7,16 +7,20 @@
 from typing import Any, TypeVar, Callable, Awaitable
 from typing_extensions import ParamSpec
 
+import anyio
+import sniffio
+import anyio.to_thread
+
 T_Retval = TypeVar("T_Retval")
 T_ParamSpec = ParamSpec("T_ParamSpec")
 
 
 if sys.version_info >= (3, 9):
-    to_thread = asyncio.to_thread
+    _asyncio_to_thread = asyncio.to_thread
 else:
     # backport of https://docs.python.org/3/library/asyncio-task.html#asyncio.to_thread
     # for Python 3.8 support
-    async def to_thread(
+    async def _asyncio_to_thread(
         func: Callable[T_ParamSpec, T_Retval], /, *args: T_ParamSpec.args, **kwargs: T_ParamSpec.kwargs
     ) -> Any:
         """Asynchronously run function *func* in a separate thread.
@@ -34,6 +38,17 @@ async def to_thread(
         return await loop.run_in_executor(None, func_call)
 
 
+async def to_thread(
+    func: Callable[T_ParamSpec, T_Retval], /, *args: T_ParamSpec.args, **kwargs: T_ParamSpec.kwargs
+) -> T_Retval:
+    if sniffio.current_async_library() == "asyncio":
+        return await _asyncio_to_thread(func, *args, **kwargs)
+
+    return await anyio.to_thread.run_sync(
+        functools.partial(func, *args, **kwargs),
+    )
+
+
 # inspired by `asyncer`, https://github.com/tiangolo/asyncer
 def asyncify(function: Callable[T_ParamSpec, T_Retval]) -> Callable[T_ParamSpec, Awaitable[T_Retval]]:
     """
diff --git a/src/orb/_version.py b/src/orb/_version.py
index 5046f5e5..0713e4a1 100644
--- a/src/orb/_version.py
+++ b/src/orb/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "orb"
-__version__ = "3.4.0"  # x-release-please-version
+__version__ = "3.4.1"  # x-release-please-version