diff --git a/test/compfft.py b/test/compfft.py
index 70bad2a..ad3b7e9 100755
--- a/test/compfft.py
+++ b/test/compfft.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.3
+#!/usr/bin/env python
 
 # use FFTPACK as a baseline
 import FFT
diff --git a/test/fastfir.py b/test/fastfir.py
index ad9ce40..5ff432a 100755
--- a/test/fastfir.py
+++ b/test/fastfir.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.3
+#!/usr/bin/env python
 
 from Numeric import *
 from FFT import *
diff --git a/test/fft.py b/test/fft.py
index 339753c..2705f71 100755
--- a/test/fft.py
+++ b/test/fft.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.3
+#!/usr/bin/env python
 
 import math
 import sys
diff --git a/test/mk_test.py b/test/mk_test.py
index 4271e8c..998b730 100755
--- a/test/mk_test.py
+++ b/test/mk_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.3
+#!/usr/bin/env python
 
 import FFT
 import sys
diff --git a/test/testkiss.py b/test/testkiss.py
index 3cca32f..a5f7005 100755
--- a/test/testkiss.py
+++ b/test/testkiss.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.3
+#!/usr/bin/env python
 
 import math
 import sys