diff --git a/json-c.spec b/json-c.spec
index 50efe44..3cfaa36 100644
--- a/json-c.spec
+++ b/json-c.spec
@@ -26,7 +26,7 @@
 
 Name:           json-c
 Version:        0.14
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        JSON implementation in C
 
 License:        MIT
@@ -42,7 +42,7 @@ Patch0005:      %{url}/pull/619.patch#/%{name}-0.14-cmake_fix_out_of_tree_build_
 
 BuildRequires:  cmake
 BuildRequires:  gcc
-BuildRequires:  make
+BuildRequires:  ninja-build
 %ifarch %{valgrind_arches}
 BuildRequires:  valgrind
 %endif
@@ -88,13 +88,14 @@ mkdir -p %{_vpath_builddir}
   -DDISABLE_WERROR:BOOL=ON           \
   -DENABLE_RDRAND:BOOL=ON            \
   -DENABLE_THREADING:BOOL=ON         \
+  -G Ninja                           \
   -B $PWD/%{_vpath_builddir}         \
   -S $PWD
-%make_build -C %{_vpath_builddir} all doc
+%ninja_build -C %{_vpath_builddir} all doc
 
 
 %install
-%make_install -C %{_vpath_builddir}
+%ninja_install -C %{_vpath_builddir}
 
 # Documentation
 mkdir -p %{buildroot}%{_pkgdocdir}
@@ -103,10 +104,15 @@ cp -a %{_vpath_builddir}/doc/html ChangeLog README README.* \
 
 
 %check
-USE_VALGRIND=0 %make_build -C %{_vpath_builddir} test
+pushd %{_vpath_builddir}
+export USE_VALGRIND=0
+ctest %{_smp_mflags} --force-new-ctest-process --output-on-failure
 %ifarch %{valgrind_arches}
-USE_VALGRIND=1 %make_build -C %{_vpath_builddir} test
+export USE_VALGRIND=1
+ctest %{_smp_mflags} --force-new-ctest-process --output-on-failure
 %endif
+unset USE_VALGRIND
+popd
 
 
 %ldconfig_scriptlets
@@ -136,6 +142,9 @@ USE_VALGRIND=1 %make_build -C %{_vpath_builddir} test
 
 
 %changelog
+* Tue May 26 2020 Björn Esser <besser82@fedoraproject.org> - 0.14-6
+- Build using Ninja instead of Make
+
 * Mon May 25 2020 Björn Esser <besser82@fedoraproject.org> - 0.14-5
 - Run the testssuite with valgrind on %%valgrind_arches