diff --git a/setup.py b/setup.py
index 2bbc53f503..f9b4a7d67f 100644
--- a/setup.py
+++ b/setup.py
@@ -93,7 +93,7 @@ setup(
         "func_timeout",
         "geopy",
         "graphlib-backport",
-        "gunicorn>=20.1.0",
+        "gunicorn>=20.1.0; sys_platform != 'win32'",
         "hashids>=1.3.1, <2",
         "holidays>=0.17.2, <0.18",
         "humanize",
@@ -122,6 +122,7 @@ setup(
         "sqlparse>=0.4.3, <0.5",
         "tabulate>=0.8.9, <0.9",
         "typing-extensions>=4, <5",
+        "waitress; sys_platform == 'win32'",
         "wtforms>=2.3.3, <2.4",
         "wtforms-json",
         "xlsxwriter>=3.0.7, <3.1",