diff --git a/setup.py b/setup.py
index 00c9cb38..fd71ab27 100644
--- a/setup.py
+++ b/setup.py
@@ -29,8 +29,8 @@
 # 'Development Status :: 5 - Production/Stable'
 release_status = 'Development Status :: 5 - Production/Stable'
 dependencies = [
-    "google-api-core[grpc] >= 1.14.0, < 2.0.0dev",
-    "google-cloud-core >= 1.0.3, < 2.0dev",
+    "google-api-core[grpc] >= 1.15.0, < 2.0.0dev",
+    "google-cloud-core >= 1.1.0, < 2.0dev",
 ]
 extras = {
 }
diff --git a/tests/system/test_system.py b/tests/system/test_system.py
index 8e2d6940..ea51aa8f 100644
--- a/tests/system/test_system.py
+++ b/tests/system/test_system.py
@@ -179,7 +179,8 @@ def test_log_text_with_resource(self):
         logger = Config.CLIENT.logger(self._logger_name("log_text_res"))
         now = datetime.datetime.utcnow()
         resource = Resource(
-            type="gae_app", labels={"module_id": "default", "version_id": "test"}
+            type="gae_app",
+            labels={"module_id": "default", "version_id": "test", "zone": ""},
         )
 
         self.to_delete.append(logger)
diff --git a/tests/unit/test__http.py b/tests/unit/test__http.py
index 30fef253..4ffc1cfe 100644
--- a/tests/unit/test__http.py
+++ b/tests/unit/test__http.py
@@ -72,7 +72,11 @@ def test_extra_headers(self):
         }
         expected_uri = conn.build_api_url("/rainbow")
         http.request.assert_called_once_with(
-            data=req_data, headers=expected_headers, method="GET", url=expected_uri
+            data=req_data,
+            headers=expected_headers,
+            method="GET",
+            url=expected_uri,
+            timeout=None,
         )