Refresh Python dependencies

Author: mdmintz

requirements.txt

@@ -46,7 +46,8 @@ more-itertools==8.12.0;python_version>="3.5"
 cssselect==1.1.0
 sortedcontainers==2.4.0
 filelock==3.2.1;python_version<"3.6"
-filelock==3.4.2;python_version>="3.6"
+filelock==3.4.1;python_version>="3.6" and python_version<"3.7"
+filelock==3.4.2;python_version>="3.7"
 fasteners==0.16;python_version<"3.5"
 fasteners==0.16.3;python_version>="3.5"
 execnet==1.9.0

setup.py

@@ -166,7 +166,8 @@
         "cssselect==1.1.0",
         "sortedcontainers==2.4.0",
         'filelock==3.2.1;python_version<"3.6"',
-        'filelock==3.4.2;python_version>="3.6"',
+        'filelock==3.4.1;python_version>="3.6" and python_version<"3.7"',
+        'filelock==3.4.2;python_version>="3.7"',
         'fasteners==0.16;python_version<"3.5"',
         'fasteners==0.16.3;python_version>="3.5"',
         "execnet==1.9.0",