diff --git a/pennylane_ionq/api_client.py b/pennylane_ionq/api_client.py
index 9c09812..08f9365 100644
--- a/pennylane_ionq/api_client.py
+++ b/pennylane_ionq/api_client.py
@@ -129,6 +129,9 @@ def __init__(self, **kwargs):
 
         self.HEADERS = {"User-Agent": self.USER_AGENT}
 
+        # Ten minute timeout on requests.
+        self.TIMEOUT_SECONDS = 60 * 10
+
         if self.AUTHENTICATION_TOKEN:
             self.set_authorization_header(self.AUTHENTICATION_TOKEN)
         else:
@@ -179,6 +182,8 @@ def request(self, method, **params):
 
         params["headers"] = self.HEADERS
 
+        params["timeout"] = self.TIMEOUT_SECONDS
+
         try:
             response = method(**params)
         except Exception as e:
diff --git a/tests/test_api_client.py b/tests/test_api_client.py
index d317712..6a82c06 100755
--- a/tests/test_api_client.py
+++ b/tests/test_api_client.py
@@ -113,6 +113,7 @@ def test_init_default_client(self):
         client = api_client.APIClient(authentication_token="")
         assert client.BASE_URL.startswith("https://")
         assert client.HEADERS["User-Agent"] == client.USER_AGENT
+        assert client.TIMEOUT_SECONDS == 600
 
     def test_set_authorization_header(self):
         """