diff --git a/google/cloud/logging/client.py b/google/cloud/logging/client.py
index 680c29c8..0997d21a 100644
--- a/google/cloud/logging/client.py
+++ b/google/cloud/logging/client.py
@@ -124,7 +124,10 @@ def __init__(
         client_options=None,
     ):
         super(Client, self).__init__(
-            project=project, credentials=credentials, _http=_http
+            project=project,
+            credentials=credentials,
+            _http=_http,
+            client_options=client_options,
         )
 
         kw_args = {"client_info": client_info}
diff --git a/setup.py b/setup.py
index 42d4eee5..776c30b3 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
 release_status = 'Development Status :: 5 - Production/Stable'
 dependencies = [
     "google-api-core[grpc] >= 1.15.0, < 2.0.0dev",
-    "google-cloud-core >= 1.1.0, < 2.0dev",
+    "google-cloud-core >= 1.4.1, < 2.0dev",
 ]
 extras = {
 }