diff --git a/bin/tahoe-script.template b/bin/tahoe-script.template
index ba192e548..5f144b22d 100644
--- a/bin/tahoe-script.template
+++ b/bin/tahoe-script.template
@@ -1,5 +1,5 @@
 #!/bin/false # You must specify a python interpreter.
-u"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.4.4 and 2.7.x inclusive."
+u"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.5 and 2.7.x inclusive."
 
 import sys, os, subprocess
 
diff --git a/setup.py b/setup.py
index 75f83ea6d..bbb662df4 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
-u"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.4.4 and 2.7.x inclusive."
+u"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.5 and 2.7.x inclusive."
 
 # Tahoe-LAFS -- secure, distributed storage grid
 #