diff --git a/.cirrus.yml b/.cirrus.yml
index 7a71298cb1..fe16cc26c9 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -23,7 +23,7 @@ task:
   test_script: |
     export SKIP_CI_SPECS="${SKIP_CI_SPECS}${JOB_SKIP_CI_SPECS}"
     chown ohpc -R tests
-    tests/ci/setup_slurm_and_run_tests.sh ohpc gnu13 $(tests/ci/cirrus_get_changed_files.sh)
+    tests/ci/setup_slurm_and_run_tests.sh ohpc gnu14 $(tests/ci/cirrus_get_changed_files.sh)
 
 openeuler_task:
   name: openEuler on aarch64
@@ -45,4 +45,4 @@ openeuler_task:
   test_script: |
     export SKIP_CI_SPECS="${SKIP_CI_SPECS}${JOB_SKIP_CI_SPECS}"
     chown ohpc -R tests
-    tests/ci/setup_slurm_and_run_tests.sh ohpc gnu13 $(tests/ci/cirrus_get_changed_files.sh)
+    tests/ci/setup_slurm_and_run_tests.sh ohpc gnu14 $(tests/ci/cirrus_get_changed_files.sh)
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 3072544784..c545506aa0 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -65,7 +65,7 @@ jobs:
   build_on_rhel:
     strategy:
       matrix:
-        compiler: [gnu13, intel]
+        compiler: [gnu14, intel]
     runs-on: ubuntu-latest
     name: Build on RHEL (${{ matrix.compiler}})
     container:
@@ -105,7 +105,7 @@ jobs:
   test_on_rhel:
     strategy:
       matrix:
-        compiler: [gnu13, intel]
+        compiler: [gnu14, intel]
     runs-on: ubuntu-latest
     name: Test on RHEL
     env:
@@ -185,7 +185,7 @@ jobs:
   test_on_openEuler:
     strategy:
       matrix:
-        compiler: [gnu13]
+        compiler: [gnu14]
     env:
       JOB_SKIP_CI_SPECS: |
         components/runtimes/charliecloud/SPECS/charliecloud.spec
@@ -246,7 +246,7 @@ jobs:
   test_on_leap:
     strategy:
       matrix:
-        compiler: [gnu13]
+        compiler: [gnu14]
     env:
       JOB_SKIP_CI_SPECS: |
         components/runtimes/charliecloud/SPECS/charliecloud.spec
diff --git a/components/mpi-families/openmpi/SPECS/openmpi.spec b/components/mpi-families/openmpi/SPECS/openmpi.spec
index a297712931..803b147be7 100644
--- a/components/mpi-families/openmpi/SPECS/openmpi.spec
+++ b/components/mpi-families/openmpi/SPECS/openmpi.spec
@@ -43,7 +43,7 @@ Summary:   A powerful implementation of MPI/SHMEM
 
 Name:      %{pname}%{RMS_DELIM}-%{compiler_family}%{PROJ_DELIM}
 
-Version:   5.0.3
+Version:   5.0.5
 Release:   1%{?dist}
 License:   BSD-3-Clause
 Group:     %{PROJ_NAME}/mpi-families
diff --git a/misc/build_srpm.sh b/misc/build_srpm.sh
index 81c09cec6a..c35a6b79f9 100755
--- a/misc/build_srpm.sh
+++ b/misc/build_srpm.sh
@@ -18,7 +18,7 @@ SPEC=$1
 if [ $# -ge 2 ]; then
 	COMPILER_FAMILY=$2
 else
-	COMPILER_FAMILY=gnu13
+	COMPILER_FAMILY=gnu14
 fi
 
 if [ $# -ge 3 ]; then
diff --git a/misc/obs/config.2.x b/misc/obs/config.2.x
index 6ee9a829bb..7c576a457a 100644
--- a/misc/obs/config.2.x
+++ b/misc/obs/config.2.x
@@ -44,7 +44,7 @@ skip_x86  = ["-arm1"]
 
 # define compiler/MPI families: first entry in list is defined to be parent in OBS
 #compiler_families=["gnu13","intel","arm1"]
-compiler_families=["gnu13", "intel"]
+compiler_families=["gnu14", "intel"]
 mpi_families=["openmpi5","mpich","mvapich2","impi"]
 
 standalone = ["docs","test-suite","warewulf"]
diff --git a/tests/admin/spack/spack b/tests/admin/spack/spack
index 31606b05d2..1fe98da332 100755
--- a/tests/admin/spack/spack
+++ b/tests/admin/spack/spack
@@ -21,7 +21,7 @@ setup() {
 }
 
 @test "[spack] add compiler" {
-    module load gnu13
+    module load gnu14
     spack compiler find
     assert_success
 }
diff --git a/tests/ci/run_build.py b/tests/ci/run_build.py
index aca504a819..27c261a21d 100755
--- a/tests/ci/run_build.py
+++ b/tests/ci/run_build.py
@@ -27,7 +27,7 @@
 parser.add_argument(
     '--compiler-family',
     help='compiler family name to use for rebuild',
-    default='gnu13',
+    default='gnu14',
 )
 parser.add_argument(
     '--mpi-family',
diff --git a/tests/ci/spec_to_test_mapping.py b/tests/ci/spec_to_test_mapping.py
index 8e52454c36..fe12b66757 100755
--- a/tests/ci/spec_to_test_mapping.py
+++ b/tests/ci/spec_to_test_mapping.py
@@ -42,11 +42,11 @@
     'components/io-libs/adios2/SPECS/adios2.spec': [
         'adios2',
         '',
-        'openmpi5-gnu13-ohpc \
-            mpich-gnu13-ohpc \
-            python3-numpy-gnu13-ohpc \
-            python3-mpi4py-gnu13-mpich-ohpc \
-            python3-mpi4py-gnu13-openmpi5-ohpc'
+        'openmpi5-gnu14-ohpc \
+            mpich-gnu14-ohpc \
+            python3-numpy-gnu14-ohpc \
+            python3-mpi4py-gnu14-mpich-ohpc \
+            python3-mpi4py-gnu14-openmpi5-ohpc'
     ],
     'components/io-libs/hdf5/SPECS/hdf5.spec': [
         'hdf5',
@@ -126,7 +126,7 @@
     'components/parallel-libs/superlu_dist/SPECS/superlu_dist.spec': [
         'superlu_dist',
         '',
-        'scalapack-gnu13-openmpi5-ohpc scalapack-gnu13-mpich-ohpc'
+        'scalapack-gnu14-openmpi5-ohpc scalapack-gnu14-mpich-ohpc'
     ],
     'components/parallel-libs/trilinos/SPECS/trilinos.spec': [
         'trilinos',
@@ -136,17 +136,17 @@
     'components/perf-tools/extrae/SPECS/extrae.spec': [
         'extrae',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/perf-tools/geopm/SPECS/geopm.spec': [
         'geopm',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/perf-tools/likwid/SPECS/likwid.spec': [
         'likwid',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/perf-tools/papi/SPECS/papi.spec': [
         'papi',
@@ -156,17 +156,17 @@
     'components/perf-tools/scorep/SPECS/scorep.spec': [
         'scorep',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/perf-tools/scalasca/SPECS/scalasca.spec': [
         'scalasca',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/perf-tools/tau/SPECS/tau.spec': [
         'tau',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc man bc'
+        'lmod-defaults-gnu14-openmpi5-ohpc man bc'
     ],
     'components/mpi-families/openmpi/SPECS/openmpi5.spec': [
         'slurm',
@@ -216,7 +216,7 @@
     'components/perf-tools/dimemas/SPECS/dimemas.spec': [
         'dimemas',
         '',
-        'lmod-defaults-gnu13-openmpi5-ohpc'
+        'lmod-defaults-gnu14-openmpi5-ohpc'
     ],
     'components/runtimes/charliecloud/SPECS/charliecloud.spec': [
         'charliecloud',
@@ -226,12 +226,12 @@
     'components/io-libs/netcdf-fortran/SPECS/netcdf-fortran.spec': [
         'netcdf',
         '',
-        'netcdf-cxx-gnu13-openmpi5-ohpc netcdf-cxx-gnu13-mpich-ohpc'
+        'netcdf-cxx-gnu14-openmpi5-ohpc netcdf-cxx-gnu14-mpich-ohpc'
     ],
     'components/io-libs/netcdf-cxx/SPECS/netcdf-cxx.spec': [
         'netcdf',
         '',
-        'netcdf-fortran-gnu13-openmpi5-ohpc netcdf-fortran-gnu13-mpich-ohpc'
+        'netcdf-fortran-gnu14-openmpi5-ohpc netcdf-fortran-gnu14-mpich-ohpc'
     ],
     'components/perf-tools/imb/SPECS/imb.spec': [
         'imb',
diff --git a/tests/common/TEST_ENV.in b/tests/common/TEST_ENV.in
index 49091e001f..fd28805371 100644
--- a/tests/common/TEST_ENV.in
+++ b/tests/common/TEST_ENV.in
@@ -8,7 +8,7 @@ PYTHON_FAMILIES="@PYTHON_FAMILIES@"
 BEEGFS_TEST_PATH="/mnt/beegfs"
 LUSTRE_TEST_PATH="/mnt/lustre/ohpc-test"
 NUM_COMPUTES=2
-GCC_DEFAULT="gnu13"
+GCC_DEFAULT="gnu14"
 export BATS_USE_MKTEMP=1
 export OMPI_MCA_rmaps_base_oversubscribe=1
 #
diff --git a/tests/common/functions b/tests/common/functions
index 004168397a..d960fa1210 100644
--- a/tests/common/functions
+++ b/tests/common/functions
@@ -157,6 +157,10 @@ check_compiler_family()
 	myCC=gcc
 	myCXX=g++
 	myFC=gfortran
+    elif [ $LMOD_FAMILY_COMPILER == "gnu14" ];then
+	myCC=gcc
+	myCXX=g++
+	myFC=gfortran
     elif [ $LMOD_FAMILY_COMPILER == "gnu13" ];then
 	myCC=gcc
 	myCXX=g++
diff --git a/tests/configure.ac b/tests/configure.ac
index 4e03e3eaba..01bb29bcfc 100644
--- a/tests/configure.ac
+++ b/tests/configure.ac
@@ -58,12 +58,12 @@ AC_ARG_ENABLE([psxe],
 # Default MPI families to test
 if test x$enable_psxe = xyes ;then
    AC_MSG_RESULT([yes])
-   AC_SUBST(COMPILER_FAMILIES,["gnu13 intel"])
+   AC_SUBST(COMPILER_FAMILIES,["gnu14 intel"])
    AC_SUBST(MPI_FAMILIES,["mpich mvapich2 openmpi5 impi"])
    AC_SUBST(PYTHON_FAMILIES,["python3"])
 else
    AC_MSG_RESULT([no])
-   AC_SUBST(COMPILER_FAMILIES,["gnu13"])
+   AC_SUBST(COMPILER_FAMILIES,["gnu14"])
    AC_SUBST(MPI_FAMILIES,["mpich mvapich2 openmpi5"])
    AC_SUBST(PYTHON_FAMILIES,["python3"])
 fi
diff --git a/tests/libs/gsl/configure.ac b/tests/libs/gsl/configure.ac
index d61ed23ce8..c4ac06dedd 100644
--- a/tests/libs/gsl/configure.ac
+++ b/tests/libs/gsl/configure.ac
@@ -57,6 +57,7 @@ fi
 AM_CONDITIONAL(USE_GNU_COMPILER, test "$LMOD_FAMILY_COMPILER" = "gnu")
 AM_CONDITIONAL(USE_GNU_COMPILER, test "$LMOD_FAMILY_COMPILER" = "gnu12")
 AM_CONDITIONAL(USE_GNU_COMPILER, test "$LMOD_FAMILY_COMPILER" = "gnu13")
+AM_CONDITIONAL(USE_GNU_COMPILER, test "$LMOD_FAMILY_COMPILER" = "gnu14")
 AM_COND_IF(USE_GNU_COMPILER, LDFLAGS="${LDFLAGS} -lm")
 
 # Set subdirectories
diff --git a/tests/libs/opencoarrays/ohpc-tests/test_mpi_families b/tests/libs/opencoarrays/ohpc-tests/test_mpi_families
index ab9809c0b2..856d6b2a82 100755
--- a/tests/libs/opencoarrays/ohpc-tests/test_mpi_families
+++ b/tests/libs/opencoarrays/ohpc-tests/test_mpi_families
@@ -15,7 +15,7 @@ export BATS_JUNIT_CLASS=OpenCoarrays
 
 ./bootstrap || exit 1
 
-for compiler in gnu13 ; do
+for compiler in gnu14 ; do
     for mpi in $MPI_FAMILIES ; do
 
 	echo " "
diff --git a/tests/m4/compiler_family.m4 b/tests/m4/compiler_family.m4
index a2016b9165..aedd97be9f 100644
--- a/tests/m4/compiler_family.m4
+++ b/tests/m4/compiler_family.m4
@@ -30,6 +30,12 @@ elif test "x$LMOD_FAMILY_COMPILER" = "xgnu12"; then
    FC=gfortran
    AC_MSG_RESULT([gnu12])
    OHPC_BLAS="-L${OPENBLAS_LIB} -lopenblas"
+elif test "x$LMOD_FAMILY_COMPILER" = "xgnu14"; then
+   CC=gcc
+   CXX=g++
+   FC=gfortran
+   AC_MSG_RESULT([gnu14])
+   OHPC_BLAS="-L${OPENBLAS_LIB} -lopenblas"
 elif test "x$LMOD_FAMILY_COMPILER" = "xgnu13"; then
    CC=gcc
    CXX=g++
diff --git a/tests/perf-tools/scorep/tests/mpi/configure.ac b/tests/perf-tools/scorep/tests/mpi/configure.ac
index f5599f92fc..d394af304e 100644
--- a/tests/perf-tools/scorep/tests/mpi/configure.ac
+++ b/tests/perf-tools/scorep/tests/mpi/configure.ac
@@ -35,7 +35,7 @@ if test "x$LMOD_FAMILY_COMPILER" = "xintel" ; then
       LDFLAGS="$LDFLAGS -lfmpich"
    fi
 else
-if test "x$LMOD_FAMILY_COMPILER" = "xgnu13" ; then
+if test "x$LMOD_FAMILY_COMPILER" = "xgnu14" ; then
   CFLAGS="${CFLAGS} -fopenmp"
   CXXFLAGS="${CXXFLAGS} -fopenmp"
   FCFLAGS="${FCFLAGS} -fopenmp -fallow-argument-mismatch"
diff --git a/tests/perf-tools/scorep/tests/serial/configure.ac b/tests/perf-tools/scorep/tests/serial/configure.ac
index 3eac58f966..ed64bba5c8 100644
--- a/tests/perf-tools/scorep/tests/serial/configure.ac
+++ b/tests/perf-tools/scorep/tests/serial/configure.ac
@@ -32,7 +32,7 @@ if test "x$LMOD_FAMILY_COMPILER" = "xintel" ; then
    CXXFLAGS="${CXXFLAGS} -qopenmp -Wno-implicit-function-declaration"
    FCFLAGS="${FCFLAGS} -qopenmp"
 else
-if test "x$LMOD_FAMILY_COMPILER" = "xgnu13" ; then
+if test "x$LMOD_FAMILY_COMPILER" = "xgnu14" ; then
   CFLAGS="${CFLAGS} -fopenmp"
   CXXFLAGS="${CXXFLAGS} -fopenmp"
   FCFLAGS="${FCFLAGS} -fopenmp -fallow-argument-mismatch"