diff --git a/setup.py b/setup.py
index da3310a..8613381 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
       py_modules=['tap_salesforce'],
       install_requires=[
           'requests==2.20.0',
-          'pipelinewise-singer-python==1.*',
+          'pipelinewise-singer-python>=1,<3',
           'xmltodict==0.11.0'
       ],
       extras_require={