diff --git a/supabase/_async/client.py b/supabase/_async/client.py
index 885e3ac4..737f2abc 100644
--- a/supabase/_async/client.py
+++ b/supabase/_async/client.py
@@ -16,6 +16,7 @@
 from supafunc import AsyncFunctionsClient
 
 from ..lib.client_options import AsyncClientOptions as ClientOptions
+from ..lib.client_options import AsyncHttpxClient
 from .auth_client import AsyncSupabaseAuthClient
 
 
@@ -175,6 +176,7 @@ def postgrest(self):
                 headers=self.options.headers,
                 schema=self.options.schema,
                 timeout=self.options.postgrest_client_timeout,
+                client=self.options.httpx_client,
             )
 
         return self._postgrest
@@ -265,6 +267,7 @@ def _init_postgrest_client(
         timeout: Union[int, float, Timeout] = DEFAULT_POSTGREST_CLIENT_TIMEOUT,
         verify: bool = True,
         proxy: Optional[str] = None,
+        client: Union[AsyncHttpxClient, None] = None,
     ) -> AsyncPostgrestClient:
         """Private helper for creating an instance of the Postgrest client."""
         return AsyncPostgrestClient(
@@ -274,6 +277,7 @@ def _init_postgrest_client(
             timeout=timeout,
             verify=verify,
             proxy=proxy,
+            client=client,
         )
 
     def _create_auth_header(self, token: str):
diff --git a/supabase/_sync/client.py b/supabase/_sync/client.py
index e728a9ec..8854047c 100644
--- a/supabase/_sync/client.py
+++ b/supabase/_sync/client.py
@@ -15,6 +15,7 @@
 from supafunc import SyncFunctionsClient
 
 from ..lib.client_options import SyncClientOptions as ClientOptions
+from ..lib.client_options import SyncHttpxClient
 from .auth_client import SyncSupabaseAuthClient
 
 
@@ -174,6 +175,7 @@ def postgrest(self):
                 headers=self.options.headers,
                 schema=self.options.schema,
                 timeout=self.options.postgrest_client_timeout,
+                client=self.options.httpx_client,
             )
 
         return self._postgrest
@@ -264,6 +266,7 @@ def _init_postgrest_client(
         timeout: Union[int, float, Timeout] = DEFAULT_POSTGREST_CLIENT_TIMEOUT,
         verify: bool = True,
         proxy: Optional[str] = None,
+        client: Union[SyncHttpxClient, None] = None,
     ) -> SyncPostgrestClient:
         """Private helper for creating an instance of the Postgrest client."""
         return SyncPostgrestClient(
@@ -273,6 +276,7 @@ def _init_postgrest_client(
             timeout=timeout,
             verify=verify,
             proxy=proxy,
+            client=client,
         )
 
     def _create_auth_header(self, token: str):
diff --git a/supabase/lib/client_options.py b/supabase/lib/client_options.py
index 47498c13..37c17424 100644
--- a/supabase/lib/client_options.py
+++ b/supabase/lib/client_options.py
@@ -8,6 +8,8 @@
     SyncMemoryStorage,
     SyncSupportedStorage,
 )
+from httpx import AsyncClient as AsyncHttpxClient
+from httpx import Client as SyncHttpxClient
 from httpx import Timeout
 from postgrest.constants import DEFAULT_POSTGREST_CLIENT_TIMEOUT
 from storage3.constants import DEFAULT_TIMEOUT as DEFAULT_STORAGE_CLIENT_TIMEOUT
@@ -43,6 +45,9 @@ class ClientOptions:
     realtime: Optional[RealtimeClientOptions] = None
     """Options passed to the realtime-py instance"""
 
+    httpx_client: Union[SyncHttpxClient] = None
+    """Options passed to the realtime-py instance"""
+
     postgrest_client_timeout: Union[int, float, Timeout] = (
         DEFAULT_POSTGREST_CLIENT_TIMEOUT
     )
@@ -67,6 +72,7 @@ def replace(
         persist_session: Optional[bool] = None,
         storage: Optional[SyncSupportedStorage] = None,
         realtime: Optional[RealtimeClientOptions] = None,
+        httpx_client: Optional[SyncHttpxClient] = None,
         postgrest_client_timeout: Union[
             int, float, Timeout
         ] = DEFAULT_POSTGREST_CLIENT_TIMEOUT,
@@ -85,6 +91,7 @@ def replace(
         client_options.persist_session = persist_session or self.persist_session
         client_options.storage = storage or self.storage
         client_options.realtime = realtime or self.realtime
+        client_options.httpx_client = httpx_client or self.httpx_client
         client_options.postgrest_client_timeout = (
             postgrest_client_timeout or self.postgrest_client_timeout
         )
@@ -108,6 +115,7 @@ def replace(
         persist_session: Optional[bool] = None,
         storage: Optional[AsyncSupportedStorage] = None,
         realtime: Optional[RealtimeClientOptions] = None,
+        httpx_client: Optional[AsyncHttpxClient] = None,
         postgrest_client_timeout: Union[
             int, float, Timeout
         ] = DEFAULT_POSTGREST_CLIENT_TIMEOUT,
@@ -126,6 +134,7 @@ def replace(
         client_options.persist_session = persist_session or self.persist_session
         client_options.storage = storage or self.storage
         client_options.realtime = realtime or self.realtime
+        client_options.httpx_client = httpx_client or self.httpx_client
         client_options.postgrest_client_timeout = (
             postgrest_client_timeout or self.postgrest_client_timeout
         )
@@ -146,6 +155,7 @@ def replace(
         persist_session: Optional[bool] = None,
         storage: Optional[SyncSupportedStorage] = None,
         realtime: Optional[RealtimeClientOptions] = None,
+        httpx_client: Optional[SyncHttpxClient] = None,
         postgrest_client_timeout: Union[
             int, float, Timeout
         ] = DEFAULT_POSTGREST_CLIENT_TIMEOUT,
@@ -164,6 +174,7 @@ def replace(
         client_options.persist_session = persist_session or self.persist_session
         client_options.storage = storage or self.storage
         client_options.realtime = realtime or self.realtime
+        client_options.httpx_client = httpx_client or self.httpx_client
         client_options.postgrest_client_timeout = (
             postgrest_client_timeout or self.postgrest_client_timeout
         )