diff --git a/scripts/dev/freeze.py b/scripts/dev/freeze.py
index f6ff6de31..295cbf737 100755
--- a/scripts/dev/freeze.py
+++ b/scripts/dev/freeze.py
@@ -87,7 +87,8 @@ def get_build_exe_options(skip_html=False):
         'includes': [],
         'excludes': ['tkinter'],
         'packages': ['pygments', 'pkg_resources._vendor.packaging',
-                     'pkg_resources._vendor.pyparsing'],
+                     'pkg_resources._vendor.pyparsing',
+                     'pkg_resources._vendor.six'],
     }