--- a/bin/pgxn
+++ b/bin/pgxn
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- commands dispatcher
 
--- a/bin/pgxnclient
+++ b/bin/pgxnclient
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-check
+++ b/pgxnclient/libexec/pgxn-check
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-download
+++ b/pgxnclient/libexec/pgxn-download
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-help
+++ b/pgxnclient/libexec/pgxn-help
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-info
+++ b/pgxnclient/libexec/pgxn-info
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-install
+++ b/pgxnclient/libexec/pgxn-install
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-load
+++ b/pgxnclient/libexec/pgxn-load
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-mirror
+++ b/pgxnclient/libexec/pgxn-mirror
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-search
+++ b/pgxnclient/libexec/pgxn-search
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-uninstall
+++ b/pgxnclient/libexec/pgxn-uninstall
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/libexec/pgxn-unload
+++ b/pgxnclient/libexec/pgxn-unload
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- command line interface
 """
--- a/pgxnclient/utils/uri.py
+++ b/pgxnclient/utils/uri.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 Simple implementation of URI-Templates
 (http://bitworking.org/projects/URI-Templates/).
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 """
 pgxnclient -- setup script
 """
