diff --git a/requirements.txt b/requirements.txt
index 98ac728..fa3e698 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,14 +5,9 @@ pyparsing>=2.1.10
 requests>=1.1.0
 six
 
-Shapely>=1.2.13,<2.0.0; python_version < '3.9'
-Shapely==2.0.1; python_version >= '3.9'
-
 pyproj==2.6.1; python_version < '3.9'
 pyproj==3.4.1; python_version >= '3.9'
 
-OWSLib==0.18.0; python_version < '3.9'
-OWSLib==0.28.1; python_version >= '3.9'
-
-geojson==2.5.0; python_version < '3.9'
-geojson==3.0.1; python_version >= '3.9'
+Shapely==2.0.1
+OWSLib==0.28.1
+geojson==3.0.1