Release v1.6.7 (#500)

diff --git a/CHANGELOG b/CHANGELOG
index f53813c..3b1e526 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,20 @@
+v1.6.7
+  Version 1.6.7
+
+  Bugfix release
+
+  **Note**: The next release of this library will no longer directly depend on
+    oauth2client. If you need to use oauth2client, you'll need to explicitly
+    install it.
+
+  - Make body optional for requests with no parameters. (#446)
+  - Fix retying on socket.timeout. (#495)
+  - Match travis matrix with tox testenv. (#498)
+  - Remove oauth2client._helpers dependency. (#493)
+  - Remove unused keyring test dependency. (#496)
+  - discovery.py: remove unused oauth2client import. (#492)
+  - Update README to reference GCP API client libraries. (#490)
+
 v1.6.6
   Version 1.6.6
 
diff --git a/googleapiclient/__init__.py b/googleapiclient/__init__.py
index b3b6527..d689c95 100644
--- a/googleapiclient/__init__.py
+++ b/googleapiclient/__init__.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.6.6"
+__version__ = "1.6.7"
 
 # Set default logging handler to avoid "No handler found" warnings.
 import logging