diff --git a/httpcore/_async/http_proxy.py b/httpcore/_async/http_proxy.py
index d24e88c2a..35b5d504c 100644
--- a/httpcore/_async/http_proxy.py
+++ b/httpcore/_async/http_proxy.py
@@ -186,6 +186,7 @@ def __init__(
             origin=proxy_origin,
             keepalive_expiry=keepalive_expiry,
             network_backend=network_backend,
+            ssl_context=ssl_context,
         )
         self._proxy_origin = proxy_origin
         self._remote_origin = remote_origin
diff --git a/httpcore/_sync/http_proxy.py b/httpcore/_sync/http_proxy.py
index ac07273a4..f49e80aab 100644
--- a/httpcore/_sync/http_proxy.py
+++ b/httpcore/_sync/http_proxy.py
@@ -186,6 +186,7 @@ def __init__(
             origin=proxy_origin,
             keepalive_expiry=keepalive_expiry,
             network_backend=network_backend,
+            ssl_context=ssl_context,
         )
         self._proxy_origin = proxy_origin
         self._remote_origin = remote_origin