diff --git a/bin/ubic b/bin/ubic
index f916e65..50ddf9f 100755
--- a/bin/ubic
+++ b/bin/ubic
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic;
 
 use strict;
diff --git a/bin/ubic-admin b/bin/ubic-admin
index 4fcb071..5a05987 100755
--- a/bin/ubic-admin
+++ b/bin/ubic-admin
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic_admin;
 
 use strict;
diff --git a/bin/ubic-daemon b/bin/ubic-daemon
index 04a729d..fdc30ea 100755
--- a/bin/ubic-daemon
+++ b/bin/ubic-daemon
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic_daemon;
 
 # ABSTRACT: daemonize any binary
diff --git a/bin/ubic-periodic b/bin/ubic-periodic
index 3cb0885..83bf4f1 100755
--- a/bin/ubic-periodic
+++ b/bin/ubic-periodic
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic_periodic;
 
 # ABSTRACT: run given command every N seconds
diff --git a/bin/ubic-update b/bin/ubic-update
index 8ee8386..78766e4 100755
--- a/bin/ubic-update
+++ b/bin/ubic-update
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic_update;
 
 use strict;
diff --git a/bin/ubic-watchdog b/bin/ubic-watchdog
index 5778f4f..73e119f 100755
--- a/bin/ubic-watchdog
+++ b/bin/ubic-watchdog
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 package ubic_watchdog;
 
 use strict;