diff --git a/redhat/opm-simulators.spec b/redhat/opm-simulators.spec
index 38ed4c9f1..7ad1d6246 100644
--- a/redhat/opm-simulators.spec
+++ b/redhat/opm-simulators.spec
@@ -23,8 +23,8 @@ BuildRequires:  openmpi-devel trilinos-openmpi-devel ptscotch-openmpi-devel scot
 BuildRequires:  mpich-devel trilinos-mpich-devel ptscotch-mpich-devel
 BuildRequires:  opm-common-devel opm-common-openmpi-devel opm-common-mpich-devel
 BuildRequires: cmake3
-%{?!el8:BuildRequires: devtoolset-8-toolchain boost148-devel}
-%{?el8:BuildRequires: boost-devel}
+%{?!el8:BuildRequires: devtoolset-8-toolchain}
+BuildRequires: boost-devel
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 Requires:       libopm-simulators1 = %{version}
 
@@ -124,7 +124,7 @@ This package contains the applications for opm-simulators
 %build
 mkdir serial
 cd serial
-cmake3 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix} -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} %{?!el8:-DBOOST_LIBRARYDIR=%{_libdir}/boost148 -DBOOST_INCLUDEDIR=%{_includedir}/boost148} -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
+cmake3 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix} -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
 make %{?_smp_mflags}
 #make test
 cd ..
@@ -133,7 +133,7 @@ mkdir openmpi
 cd openmpi
 %{?el6:module load openmpi-x86_64}
 %{?!el6:module load mpi/openmpi-x86_64}
-cmake3 -DUSE_MPI=1 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix}/lib64/openmpi -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} %{?!el8:-DBOOST_LIBRARYDIR=%{_libdir}/boost148 -DBOOST_INCLUDEDIR=%{_includedir}/boost148} -DZOLTAN_ROOT=/usr/lib64/openmpi -DCMAKE_CXX_FLAGS=-I/usr/include/openmpi-x86_64/trilinos -DZOLTAN_INCLUDE_DIRS=/usr/include/openmpi-x86_64/trilinos -DPTSCOTCH_ROOT=/usr/lib64/openmpi -DPTSCOTCH_INCLUDE_DIR=/usr/include/openmpi-x86_64 -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
+cmake3 -DUSE_MPI=1 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix}/lib64/openmpi -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} -DZOLTAN_ROOT=/usr/lib64/openmpi -DCMAKE_CXX_FLAGS=-I/usr/include/openmpi-x86_64/trilinos -DZOLTAN_INCLUDE_DIRS=/usr/include/openmpi-x86_64/trilinos -DPTSCOTCH_ROOT=/usr/lib64/openmpi -DPTSCOTCH_INCLUDE_DIR=/usr/include/openmpi-x86_64 -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
 make %{?_smp_mflags}
 #make test
 cd ..
@@ -144,7 +144,7 @@ cd mpich
 %{?el6:module load mpich-x86_64}
 %{?!el6:module rm mpi/openmpi-x86_64}
 %{?!el6:module load mpi/mpich-x86_64}
-cmake3 -DUSE_MPI=1 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix}/lib64/mpich -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} %{?!el8:-DBOOST_LIBRARYDIR=%{_libdir}/boost148 -DBOOST_INCLUDEDIR=%{_includedir}/boost148} -DZOLTAN_ROOT=/usr/lib64/mpich -DCMAKE_CXX_FLAGS=-I/usr/include/mpich-x86_64/trilinos -DZOLTAN_INCLUDE_DIRS=/usr/include/mpich-x86_64/trilinos -DPTSCOTCH_ROOT=/usr/lib64/mpich -DPTSCOTCH_INCLUDE_DIR=/usr/include/mpich-x86_64 -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
+cmake3 -DUSE_MPI=1 -DBUILD_SHARED_LIBS=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%{_prefix}/lib64/mpich -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_DOCDIR=share/doc/%{name}-%{version} -DUSE_RUNPATH=OFF -DWITH_NATIVE=OFF -DUSE_QUADMATH=0 %{!?el8:-DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/g++ -DCMAKE_C_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gcc -DCMAKE_Fortran_COMPILER=/opt/rh/devtoolset-8/root/usr/bin/gfortran} -DZOLTAN_ROOT=/usr/lib64/mpich -DCMAKE_CXX_FLAGS=-I/usr/include/mpich-x86_64/trilinos -DZOLTAN_INCLUDE_DIRS=/usr/include/mpich-x86_64/trilinos -DPTSCOTCH_ROOT=/usr/lib64/mpich -DPTSCOTCH_INCLUDE_DIR=/usr/include/mpich-x86_64 -DCMAKE_INSTALL_SYSCONFDIR=/etc ..
 make %{?_smp_mflags}
 #make test