diff --git a/.gitignore b/.gitignore
index fb6a1aa..8d0feaf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@
 /gpsd-3.23.1.tar.gz
 /gpsd-3.24.tar.gz
 /gpsd-3.25.tar.gz
+/scons-4.6.0.tar.gz
diff --git a/gpsd.spec b/gpsd.spec
index 64062dd..a4dde75 100644
--- a/gpsd.spec
+++ b/gpsd.spec
@@ -7,6 +7,9 @@
 %global with_qt 1
 %endif
 
+%global scons_ver 4.6.0
+%global scons python3 scons-%{scons_ver}/scripts/scons.py
+
 Name:           gpsd
 Version:        3.25
 Release:        10%{?dist}
@@ -16,6 +19,8 @@ Summary:        Service daemon for mediating access to a GPS
 License:        BSD-2-Clause
 URL:            https://gpsd.gitlab.io/gpsd/index.html
 Source0:        https://download-mirror.savannah.gnu.org/releases/gpsd/%{name}-%{version}.tar.gz
+# used only for building
+Source1:        https://github.com/SCons/scons/archive/%{scons_ver}/scons-%{scons_ver}.tar.gz
 Source11:       gpsd.sysconfig
 
 # add missing IPv6 support
@@ -141,7 +146,7 @@ package split. It will be removed after one distribution release cycle, please
 do not reference it or depend on it in any way.
 
 %prep
-%setup -q
+%setup -q -a 1
 %patch -P 1 -p1 -b .ipv6
 %patch -P 2 -p1 -b .scanfixes
 %patch -P 3 -p1 -b .busywait
@@ -158,7 +163,7 @@ export CCFLAGS="%{optflags}"
 export LINKFLAGS="%{__global_ldflags}"
 
 # breaks with %%{_smp_mflags}
-scons \
+%{scons} \
     dbus_export=yes \
     systemd=yes \
 %if %{with_qt}
@@ -192,7 +197,7 @@ scons \
 export CCFLAGS="%{optflags}"
 export LINKFLAGS="%{__global_ldflags}"
 
-DESTDIR=%{buildroot} scons install systemd_install udev-install
+DESTDIR=%{buildroot} %{scons} install systemd_install udev-install
 
 # use the old name for udev rules
 mv %{buildroot}%{_udevrulesdir}/{25,99}-gpsd.rules
diff --git a/sources b/sources
index 6e72aca..81531cf 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 SHA512 (gpsd-3.25.tar.gz) = 0684cbd30defa1a328898589e1d61b2431462a774aff56c588bd00c1fbd92ac94cf6fc1f2b981debac78c34ab09fa24f48ed6334f3ecd09e6b8f5faa92ae1085
+SHA512 (scons-4.6.0.tar.gz) = d7dd30bbc94ec014b12b37a106aa536dd5c8b16e9f1605b68cad6721cf6e3959add1f75a42693fd8499734ca19eb76f648800d7cc8081fe334282841cd406954