diff --git a/config/aix4-config.py b/config/aix4-config.py
index 93f0a5e6744..3a3db39494d 100644
--- a/config/aix4-config.py
+++ b/config/aix4-config.py
@@ -8,7 +8,7 @@ WITH_BF_VERSE = 'false'
 BF_VERSE_INCLUDE = "#extern/verse/dist"
 
 BF_PYTHON = LCGDIR+'/python'
-BF_PYTHON_VERSION = '2.2'
+BF_PYTHON_VERSION = '3.1'
 WITH_BF_STATICPYTHON = 'true'
 BF_PYTHON_INC = '${BF_PYTHON}/include/python${BF_PYTHON_VERSION}'
 BF_PYTHON_BINARY = '${BF_PYTHON}/bin/python${BF_PYTHON_VERSION}'
diff --git a/config/irix6-config.py b/config/irix6-config.py
index ab2ef02c977..df18e0b511f 100644
--- a/config/irix6-config.py
+++ b/config/irix6-config.py
@@ -4,7 +4,7 @@ LCGDIR = os.getcwd()+"/../lib/irix-6.5-mips"
 LIBDIR = LCGDIR
 
 BF_PYTHON = LCGDIR+'/python'
-BF_PYTHON_VERSION = '2.5'
+BF_PYTHON_VERSION = '3.1'
 WITH_BF_STATICPYTHON = 'true'
 BF_PYTHON_INC = '${BF_PYTHON}/include/python${BF_PYTHON_VERSION}'
 BF_PYTHON_BINARY = '${BF_PYTHON}/bin/python${BF_PYTHON_VERSION}'
diff --git a/config/linuxcross-config.py b/config/linuxcross-config.py
index 3cfa1158700..571d644a9c4 100644
--- a/config/linuxcross-config.py
+++ b/config/linuxcross-config.py
@@ -2,7 +2,7 @@ LCGDIR = '#../lib/windows'
 LIBDIR = '${LCGDIR}'
 
 BF_PYTHON = LIBDIR + '/python'
-BF_PYTHON_VERSION = '2.5'
+BF_PYTHON_VERSION = '3.1'
 BF_PYTHON_INC = '${BF_PYTHON}/include/python${BF_PYTHON_VERSION}'
 BF_PYTHON_BINARY = 'python'
 BF_PYTHON_LIB = 'python25'
diff --git a/config/openbsd3-config.py b/config/openbsd3-config.py
index 353d30f50b3..0ef9ba5d0a4 100644
--- a/config/openbsd3-config.py
+++ b/config/openbsd3-config.py
@@ -2,7 +2,7 @@ LCGDIR = '../lib/openbsd3'
 LIBDIR = '${LCGDIR}'
 
 BF_PYTHON = '/usr/local'
-BF_PYTHON_VERSION = '2.5'
+BF_PYTHON_VERSION = '3.1'
 BF_PYTHON_INC = '${BF_PYTHON}/include/python${BF_PYTHON_VERSION}'
 BF_PYTHON_BINARY = '${BF_PYTHON}/bin/python${BF_PYTHON_VERSION}'
 BF_PYTHON_LIB = 'python${BF_PYTHON_VERSION}'
diff --git a/config/sunos5-config.py b/config/sunos5-config.py
index 88dce927db4..a0713735a5b 100644
--- a/config/sunos5-config.py
+++ b/config/sunos5-config.py
@@ -2,7 +2,7 @@ LCGDIR = '../lib/sunos5'
 LIBDIR = '${LCGDIR}'
 
 BF_PYTHON = '/usr/local'
-BF_PYTHON_VERSION = '2.5'
+BF_PYTHON_VERSION = '3.1'
 BF_PYTHON_INC = '${BF_PYTHON}/include/python${BF_PYTHON_VERSION}'
 BF_PYTHON_BINARY = '${BF_PYTHON}/bin/python${BF_PYTHON_VERSION}'
 BF_PYTHON_LIB = 'python${BF_PYTHON_VERSION}' #BF_PYTHON+'/lib/python'+BF_PYTHON_VERSION+'/config/libpython'+BF_PYTHON_VERSION+'.a'