diff --git a/setup.py b/setup.py
index 4f0e3364..e90b6990 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
               "pylint==2.12.*",
               'pytest==6.2.5',
               'pytest-cov==3.0.0',
-              "python-dotenv==0.19.*"
+              "python-dotenv>=0.19,<0.21"
           ]
       },
       entry_points="""