diff --git a/setup.py b/setup.py
index ffb7e02fabb3..bfc16337e18b 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
 
 # This is a bit jank. We need cx-Freeze to be able to run anything from this script, so install it
 try:
-    requirement = 'cx-Freeze>=6.15.10'
+    requirement = 'cx-Freeze>=6.15.16,<7'
     import pkg_resources
     try:
         pkg_resources.require(requirement)
diff --git a/worlds/factorio/requirements.txt b/worlds/factorio/requirements.txt
index c45fb771da6a..c8a60369dab6 100644
--- a/worlds/factorio/requirements.txt
+++ b/worlds/factorio/requirements.txt
@@ -1 +1,2 @@
-factorio-rcon-py>=2.0.1
+factorio-rcon-py>=2.1.1; python_version >= '3.9'
+factorio-rcon-py==2.0.1; python_version <= '3.8'