diff --git a/.circleci/config.yml b/.circleci/config.yml
index dacec7bea68e..01242a41d15b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -136,10 +136,10 @@ jobs:
       - run:
           name: Make sure google-cloud setup.py is valid
           command: |
-            nox -e lint_setup_py
+            nox -s lint_setup_py
       - deploy:
           name: Update the docs
-          command: nox -e docs
+          command: nox -s docs
       - deploy:
           name: Push to PyPI (if this is a release tag).
           command: test_utils/scripts/circleci/twine_upload.sh
diff --git a/appveyor.yml b/appveyor.yml
index 9fb9bb6dd3e8..4d75dfdaaf23 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -85,23 +85,23 @@ test_script:
   - '%CMD_IN_ENV% dir bigquery'
 
   # Run the project tests
-  - '%CMD_IN_ENV% nox -f bigquery\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f bigtable\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f core\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f datastore\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f dns\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f error_reporting\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f language\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f logging\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f monitoring\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f pubsub\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f resource_manager\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f runtimeconfig\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f spanner\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f speech\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f storage\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f translate\nox.py -e "%NOX_ENV%"'
-  - '%CMD_IN_ENV% nox -f vision\nox.py -e "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f bigquery\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f bigtable\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f core\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f datastore\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f dns\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f error_reporting\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f language\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f logging\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f monitoring\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f pubsub\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f resource_manager\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f runtimeconfig\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f spanner\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f speech\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f storage\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f translate\nox.py -s "%NOX_ENV%"'
+  - '%CMD_IN_ENV% nox -f vision\nox.py -s "%NOX_ENV%"'
 
 after_test:
   # If tests are successful, create binary packages for the project.