diff --git a/auth/gcloud/aio/auth/session.py b/auth/gcloud/aio/auth/session.py
index dff6b0856..646739dcc 100644
--- a/auth/gcloud/aio/auth/session.py
+++ b/auth/gcloud/aio/auth/session.py
@@ -1,6 +1,7 @@
 import importlib.metadata
 import logging
 import threading
+import warnings
 from abc import ABCMeta
 from abc import abstractmethod
 from abc import abstractproperty
@@ -54,6 +55,7 @@ async def get(
         self, url: str, headers: Optional[Mapping[str, str]],
         timeout: float, params: Optional[Mapping[str, Union[int, str]]],
         stream: bool,
+        auto_decompress: bool,
     ) -> Response:
         pass
 
@@ -198,6 +200,7 @@ async def get(  # type: ignore[override]
             timeout: Timeout = 10,
             params: Optional[Mapping[str, Union[int, str]]] = None,
             stream: Optional[bool] = None,
+            auto_decompress: bool = True,
         ) -> aiohttp.ClientResponse:
             if not isinstance(timeout, aiohttp.ClientTimeout):
                 timeout = aiohttp.ClientTimeout(total=timeout)
@@ -211,6 +214,7 @@ async def get(  # type: ignore[override]
             resp = await self.session.get(
                 url, headers=headers,
                 timeout=timeout, params=params,
+                auto_decompress=auto_decompress,
             )
             await _raise_for_status(resp)
             return resp
@@ -335,7 +339,17 @@ async def get(
             timeout: float = 10,
             params: Optional[Mapping[str, Union[int, str]]] = None,
             stream: bool = False,
+            auto_decompress: bool = True,
         ) -> Response:
+            if not auto_decompress and not stream:
+                warnings.warn(
+                    'the requests library always decompresses responses when '
+                    'outside of streaming mode; when audo_decompress is '
+                    'False, stream = True must also be set',
+                    UserWarning,
+                )
+                stream = True
+
             with self.google_api_lock:
                 resp = self.session.get(
                     url, headers=headers, timeout=timeout,
diff --git a/auth/poetry.rest.lock b/auth/poetry.rest.lock
index 9c5412cf5..98011249b 100644
--- a/auth/poetry.rest.lock
+++ b/auth/poetry.rest.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.7.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
 
 [[package]]
 name = "backoff"
@@ -325,13 +325,13 @@ testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
 name = "pycparser"
-version = "2.21"
+version = "2.22"
 description = "C parser in Python"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+python-versions = ">=3.8"
 files = [
-    {file = "pycparser-2.21-py2.py3-none-any.whl", hash = "sha256:8ee45429555515e1f6b185e78100aea234072576aa43ab53aefcae078162fca9"},
-    {file = "pycparser-2.21.tar.gz", hash = "sha256:e644fdec12f7872f86c58ff790da456218b10f863970249516d60a5eaca77206"},
+    {file = "pycparser-2.22-py3-none-any.whl", hash = "sha256:c3702b6d3dd8c7abc1afa565d7e63d53a1d0bd86cdc24edd75470f4de499cfcc"},
+    {file = "pycparser-2.22.tar.gz", hash = "sha256:491c8be9c040f5390f5bf44a5b07752bd07f56edf992381b05c701439eec10f6"},
 ]
 
 [[package]]
@@ -375,17 +375,17 @@ testing = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygm
 
 [[package]]
 name = "pytest-mock"
-version = "3.12.0"
+version = "3.14.0"
 description = "Thin-wrapper around the mock package for easier use with pytest"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "pytest-mock-3.12.0.tar.gz", hash = "sha256:31a40f038c22cad32287bb43932054451ff5583ff094bca6f675df2f8bc1a6e9"},
-    {file = "pytest_mock-3.12.0-py3-none-any.whl", hash = "sha256:0972719a7263072da3a21c7f4773069bcc7486027d7e8e1f81d98a47e701bc4f"},
+    {file = "pytest-mock-3.14.0.tar.gz", hash = "sha256:2719255a1efeceadbc056d6bf3df3d1c5015530fb40cf347c0f9afac88410bd0"},
+    {file = "pytest_mock-3.14.0-py3-none-any.whl", hash = "sha256:0b72c38033392a5f4621342fe11e9219ac11ec9d375f8e2a0c164539e0d70f6f"},
 ]
 
 [package.dependencies]
-pytest = ">=5.0"
+pytest = ">=6.2.5"
 
 [package.extras]
 dev = ["pre-commit", "pytest-asyncio", "tox"]
@@ -442,4 +442,4 @@ zstd = ["zstandard (>=0.18.0)"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">= 3.8, < 4.0"
-content-hash = "ff6f080b1cdcf07dd2285eb123053d94676b1e95edababecee8ea1447b981958"
+content-hash = "1fe9a474cdf13c08c86dfd7155039849028f39a456783a75b8f5eb6b6fa8270e"
diff --git a/auth/pyproject.rest.toml b/auth/pyproject.rest.toml
index 728fc53fa..d63ad6064 100644
--- a/auth/pyproject.rest.toml
+++ b/auth/pyproject.rest.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "gcloud-rest-auth"
-version = "5.2.2"
+version = "5.3.0"
 description = "Python Client for Google Cloud Auth"
 readme = "README.rst"
 
@@ -31,8 +31,8 @@ requests = ">= 2.2.1, < 3.0.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "8.1.1"
-# pytest-asyncio = "0.23.5"
-pytest-mock = "3.12.0"
+# pytest-asyncio = "0.23.6"
+pytest-mock = "3.14.0"
 
 [[tool.poetry.source]]
 name = "pypi"
diff --git a/auth/pyproject.toml b/auth/pyproject.toml
index c1e87219d..18f68cc68 100644
--- a/auth/pyproject.toml
+++ b/auth/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "gcloud-aio-auth"
-version = "5.2.2"
+version = "5.3.0"
 description = "Python Client for Google Cloud Auth"
 readme = "README.rst"