diff --git a/src/aeonlib/cfht/facility.py b/src/aeonlib/cfht/facility.py
index 5956ab2..5aeadaf 100644
--- a/src/aeonlib/cfht/facility.py
+++ b/src/aeonlib/cfht/facility.py
@@ -51,6 +51,9 @@ def __init__(
         self._client = httpx.Client(base_url=base_url, headers=headers)
         self.program_token = program_token
 
+    def __del__(self):
+        self._client.close()
+
     def _request(
         self,
         method: str,