diff --git a/poetry.lock b/poetry.lock
index 616ebec..a463b82 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.4 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.1 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -16,9 +16,10 @@ files = [
 name = "anyio"
 version = "4.10.0"
 description = "High-level concurrency and networking framework on top of asyncio or Trio"
-optional = false
+optional = true
 python-versions = ">=3.9"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "anyio-4.10.0-py3-none-any.whl", hash = "sha256:60e474ac86736bbfd6f210f7a61218939c318f43f9972497381f1c5e930ed3d1"},
     {file = "anyio-4.10.0.tar.gz", hash = "sha256:3f3fae35c96039744587aa5b8371e7e8e603c0702999535961dd336026973ba6"},
@@ -37,9 +38,10 @@ trio = ["trio (>=0.26.1)"]
 name = "asyncio"
 version = "4.0.0"
 description = "Deprecated backport of asyncio; use the stdlib package instead"
-optional = false
+optional = true
 python-versions = ">=3.4"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "asyncio-4.0.0-py3-none-any.whl", hash = "sha256:c1eddb0659231837046809e68103969b2bef8b0400d59cfa6363f6b5ed8cc88b"},
     {file = "asyncio-4.0.0.tar.gz", hash = "sha256:570cd9e50db83bc1629152d4d0b7558d6451bb1bfd5dfc2e935d96fc2f40329b"},
@@ -243,11 +245,11 @@ description = "Backport of PEP 654 (exception groups)"
 optional = false
 python-versions = ">=3.7"
 groups = ["main", "dev"]
-markers = "python_version < \"3.11\""
 files = [
     {file = "exceptiongroup-1.3.0-py3-none-any.whl", hash = "sha256:4d111e6e0c13d0644cad6ddaa7ed0261a0b36971f6d23e7ec9b4b9097da78a10"},
     {file = "exceptiongroup-1.3.0.tar.gz", hash = "sha256:b241f5885f560bc56a59ee63ca4c6a8bfa46ae4ad651af316d4e81817bb9fd88"},
 ]
+markers = {main = "extra == \"asyncio\" and python_version < \"3.11\"", dev = "python_version < \"3.11\""}
 
 [package.dependencies]
 typing-extensions = {version = ">=4.6.0", markers = "python_version < \"3.13\""}
@@ -259,9 +261,10 @@ test = ["pytest (>=6)"]
 name = "h11"
 version = "0.16.0"
 description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
-optional = false
+optional = true
 python-versions = ">=3.8"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "h11-0.16.0-py3-none-any.whl", hash = "sha256:63cf8bbe7522de3bf65932fda1d9c2772064ffb3dae62d55932da54b31cb6c86"},
     {file = "h11-0.16.0.tar.gz", hash = "sha256:4e35b956cf45792e4caa5885e69fba00bdbc6ffafbfa020300e549b208ee5ff1"},
@@ -271,9 +274,10 @@ files = [
 name = "httpcore"
 version = "1.0.9"
 description = "A minimal low-level HTTP client."
-optional = false
+optional = true
 python-versions = ">=3.8"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "httpcore-1.0.9-py3-none-any.whl", hash = "sha256:2d400746a40668fc9dec9810239072b40b4484b640a8c38fd654a024c7a1bf55"},
     {file = "httpcore-1.0.9.tar.gz", hash = "sha256:6e34463af53fd2ab5d807f399a9b45ea31c3dfa2276f15a2c3f00afff6e176e8"},
@@ -293,9 +297,10 @@ trio = ["trio (>=0.22.0,<1.0)"]
 name = "httpx"
 version = "0.28.1"
 description = "The next generation HTTP client."
-optional = false
+optional = true
 python-versions = ">=3.8"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "httpx-0.28.1-py3-none-any.whl", hash = "sha256:d909fcccc110f8c7faf814ca82a9a4d816bc5a6dbfea25d6591d6985b8ba59ad"},
     {file = "httpx-0.28.1.tar.gz", hash = "sha256:75e98c5f16b0f35b567856f597f06ff2270a374470a5c2392242528e3e3e42fc"},
@@ -348,7 +353,7 @@ description = "Read metadata from Python packages"
 optional = false
 python-versions = ">=3.9"
 groups = ["docs"]
-markers = "python_version == \"3.9\""
+markers = "python_version < \"3.10\""
 files = [
     {file = "importlib_metadata-8.7.0-py3-none-any.whl", hash = "sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd"},
     {file = "importlib_metadata-8.7.0.tar.gz", hash = "sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000"},
@@ -950,9 +955,10 @@ type = ["importlib_metadata (>=7.0.2) ; python_version < \"3.10\"", "jaraco.deve
 name = "sniffio"
 version = "1.3.1"
 description = "Sniff out which async library your code is running under"
-optional = false
+optional = true
 python-versions = ">=3.7"
 groups = ["main"]
+markers = "extra == \"asyncio\""
 files = [
     {file = "sniffio-1.3.1-py3-none-any.whl", hash = "sha256:2f6da418d1f1e0fddd844478f41680e794e6051915791a034ff65e5f100525a2"},
     {file = "sniffio-1.3.1.tar.gz", hash = "sha256:f4324edc670a0f49750a81b895f35c3adb843cca46f0530f79fc1babb23789dc"},
@@ -1248,7 +1254,7 @@ files = [
     {file = "typing_extensions-4.15.0-py3-none-any.whl", hash = "sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548"},
     {file = "typing_extensions-4.15.0.tar.gz", hash = "sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466"},
 ]
-markers = {main = "python_version < \"3.13\""}
+markers = {main = "extra == \"asyncio\" and python_version < \"3.13\""}
 
 [[package]]
 name = "urllib3"
@@ -1275,7 +1281,7 @@ description = "Backport of pathlib-compatible object wrapper for zip files"
 optional = false
 python-versions = ">=3.9"
 groups = ["docs"]
-markers = "python_version == \"3.9\""
+markers = "python_version < \"3.10\""
 files = [
     {file = "zipp-3.23.0-py3-none-any.whl", hash = "sha256:071652d6115ed432f5ce1d34c336c0adfd6a884660d1e9712a256d3d3bd4b14e"},
     {file = "zipp-3.23.0.tar.gz", hash = "sha256:a07157588a12518c9d4034df3fbbee09c814741a33ff63c05fa29d26a2404166"},
@@ -1290,9 +1296,10 @@ test = ["big-O", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more_it
 type = ["pytest-mypy"]
 
 [extras]
+asyncio = ["asyncio", "httpx"]
 oauth = ["requests-oauthlib"]
 
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.9"
-content-hash = "d06a9aab15cbd7e8efd0f905bef021977399ee8b838a6bc5db8bd208f8854bb0"
+content-hash = "d9632835357d5261234d18cb3d025e33fd20a65995d01114d231804dfbd79a3c"
diff --git a/pyproject.toml b/pyproject.toml
index 7374694..895ff06 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,11 +22,12 @@ requests = ">=2.32"
 requests-oauthlib = { version = ">=1.2.0", optional = true}
 certifi = "^2024.7.4"
 urllib3 = ">=2.5"
-asyncio = "^4.0.0"
-httpx = "^0.28.1"
+asyncio = { version = "^4.0.0", optional = true }
+httpx = { version = "^0.28.1", optional = true }
 
 [tool.poetry.extras]
 oauth = ["requests-oauthlib"]
+asyncio = ["asyncio", "httpx"]
 
 [tool.poetry.group.dev.dependencies]
 requests-oauthlib = ">=1.2.0"
diff --git a/pysnc/asyncio/__init__.py b/pysnc/asyncio/__init__.py
index 7ef948c..a7ab30f 100644
--- a/pysnc/asyncio/__init__.py
+++ b/pysnc/asyncio/__init__.py
@@ -2,10 +2,14 @@
 Asynchronous implementation of the pysnc package using httpx.AsyncClient.
 """
 
-from .client import AsyncTableAPI, AsyncBatchAPI, AsyncAttachmentAPI, AsyncServiceNowClient
-from .record import AsyncGlideRecord
-from .attachment import AsyncAttachment
-from .auth import AsyncServiceNowFlow, AsyncServiceNowPasswordGrantFlow, AsyncServiceNowJWTAuth
+try:
+    from .client import AsyncTableAPI, AsyncBatchAPI, AsyncAttachmentAPI, AsyncServiceNowClient
+    from .record import AsyncGlideRecord
+    from .attachment import AsyncAttachment
+    from .auth import AsyncServiceNowFlow, AsyncServiceNowPasswordGrantFlow, AsyncServiceNowJWTAuth
+except ImportError:
+    raise ImportError("httpx is required for the asyncio module. Please install pysnc with the 'asyncio' extra.")
+
 
 __all__ = [
     'AsyncServiceNowClient',