diff --git a/gpsd.spec b/gpsd.spec
index 1989780..8c0cf83 100644
--- a/gpsd.spec
+++ b/gpsd.spec
@@ -16,9 +16,9 @@
 #
 
 
-%define   sover
-%define		libgps libgps%{sover}
-%define		libQgps libQgpsmm%{sover}
+%define         sover 23
+%define		    libgps libgps%{sover}
+%define		    libQgps libQgpsmm%{sover}
 %define         _udevdir %(pkg-config --variable udevdir udev)
 Name:           gpsd
 Version:        3.17
@@ -42,7 +42,7 @@ BuildRequires:  hicolor-icon-theme
 BuildRequires:  libcap-devel
 BuildRequires:  ncurses-devel
 BuildRequires:  pkgconfig
-BuildRequires:  scons >= 2.0.1
+BuildRequires:  scons >= 2.3.0
 BuildRequires:  systemd-rpm-macros
 BuildRequires:  update-desktop-files
 BuildRequires:  xmlto