diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index aa1a9a6..dbe6e3c 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -1,8 +1,10 @@
 Changelog
 =========
 
-Unreleased / TBD
-----------------
+.. _changelog-1.2.0:
+
+1.2.0 / (2020-04-21)
+--------------------
 
 - Adds :func:`pydata_google_auth.load_service_account_credentials` function to
   get service account credentials from the specified JSON path. (:issue:`39`)
diff --git a/noxfile.py b/noxfile.py
index 4d17e1d..70d5c37 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -10,8 +10,8 @@
 import nox
 
 
-latest_python = "3.8"
-python_versions = ["2.7", "3.5", "3.6", "3.7", "3.8"]
+latest_python = "3.9"
+python_versions = ["2.7", "3.6", "3.7", "3.8", "3.9"]
 
 
 @nox.session(python=latest_python)
diff --git a/pydata_google_auth/cache.py b/pydata_google_auth/cache.py
index 16051a3..9a206fd 100644
--- a/pydata_google_auth/cache.py
+++ b/pydata_google_auth/cache.py
@@ -145,8 +145,9 @@ def _load_service_account_credentials_from_info(credentials_json, **kwargs):
         request = google.auth.transport.requests.Request()
         try:
             credentials.refresh(request)
-        except google.auth.exceptions.RefreshError:
+        except google.auth.exceptions.RefreshError as exc:
             # Credentials could be expired or revoked.
+            logger.debug("Error refreshing credentials: {}".format(str(exc)))
             return None
 
     return credentials
diff --git a/setup.py b/setup.py
index f56138c..6eb7377 100644
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@ def readme():
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Scientific/Engineering",
         "License :: OSI Approved :: BSD License",
     ],