diff --git a/sys-devel/ct-ng/ct-ng-1.22.0.ebuild b/sys-devel/ct-ng/ct-ng-1.22.0.ebuild
index 4130ab3971e92..a1002aaa002b5 100644
--- a/sys-devel/ct-ng/ct-ng-1.22.0.ebuild
+++ b/sys-devel/ct-ng/ct-ng-1.22.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="5"
@@ -16,7 +16,7 @@ KEYWORDS="~amd64 ~x86"
 IUSE="doc"
 
 RDEPEND="net-misc/curl
-	dev-util/gperf
+	<dev-util/gperf-3.1
 	dev-vcs/cvs
 	dev-vcs/subversion"