diff --git a/setup.py b/setup.py
index caddaf12..4f4095e7 100644
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@ def readme():
     platforms="Posix; MacOS X; Windows",
     install_requires=[
         "google-api-core>=1.30.0",  # Work-around bug in cloud core deps.
-        "google-auth>=1.25.0,<2.0dev",  # Work around pip wack.
+        "google-auth>=1.25.0,<3.0dev",  # Work around pip wack.
         "google-cloud-bigquery>=2.19.0",
         "sqlalchemy>=1.2.0,<1.5.0dev",
         "future",