chore: release 1.7.2 (#391)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index fab6fe3..8c7a940 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 [1]: https://pypi.org/project/google-auth/#history
 
+### [1.7.2](https://www.github.com/googleapis/google-auth-library-python/compare/v1.7.1...v1.7.2) (2019-12-02)
+
+
+### Bug Fixes
+
+* in token endpoint request, do not decode the response data if it is not encoded ([#393](https://www.github.com/googleapis/google-auth-library-python/issues/393)) ([3b5d3e2](https://www.github.com/googleapis/google-auth-library-python/commit/3b5d3e2192ce0cdc97854a1d70d5e382e454275c))
+* make gRPC auth plugin non-blocking + add default timeout value for requests transport ([#390](https://www.github.com/googleapis/google-auth-library-python/issues/390)) ([0c33e9c](https://www.github.com/googleapis/google-auth-library-python/commit/0c33e9c0fe4f87fa46c8f1a5afe725a467ac5fcc)), closes [#351](https://www.github.com/googleapis/google-auth-library-python/issues/351)
+
 ### [1.7.1](https://www.github.com/googleapis/google-auth-library-python/compare/v1.7.0...v1.7.1) (2019-11-13)
 
 
diff --git a/setup.py b/setup.py
index 3217881..0fd04c6 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
 with io.open("README.rst", "r") as fh:
     long_description = fh.read()
 
-version = "1.7.1"
+version = "1.7.2"
 
 setup(
     name="google-auth",