diff --git a/.gitlab-ci/clang10-mpi-debug.yml b/.gitlab-ci/clang10-mpi-debug.yml
index ceafce232dcaf5935f1c6be403c796364a3b8c16..a757e02d46b81e60e981c0d3d11aaa8058c6fcab 100644
--- a/.gitlab-ci/clang10-mpi-debug.yml
+++ b/.gitlab-ci/clang10-mpi-debug.yml
@@ -6,7 +6,7 @@ test:clang10-mpi-debug:
     - mkdir -p build/clang10-debug-mpi
     - cd build/clang10-debug-mpi
     - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Debug
-    - make
+    - make -j 4
     - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-clang10-debug-mpi"
diff --git a/.gitlab-ci/clang10-mpi-release.yml b/.gitlab-ci/clang10-mpi-release.yml
index 58a2d2d2e3878ffd8672eb71e15b34a5d58062a6..3172c1c2c5f869e1e44153956cfde696adb6b05d 100644
--- a/.gitlab-ci/clang10-mpi-release.yml
+++ b/.gitlab-ci/clang10-mpi-release.yml
@@ -6,7 +6,7 @@ test:clang10-mpi-release:
     - mkdir -p build/clang10-release-mpi
     - cd build/clang10-release-mpi
     - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release -DCLANG_FORMAT=/usr/bin/clang-format-10
-    - make
+    - make -j 4
     - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-clang10-release-mpi"
diff --git a/.gitlab-ci/gcc10-mpi-coverage.yml b/.gitlab-ci/gcc10-mpi-coverage.yml
index d2cc109d71cdada957ae5ce65c72ede6ce3b21ea..5953c48fb68b696a466522e81d44e6ae9ecdcd86 100644
--- a/.gitlab-ci/gcc10-mpi-coverage.yml
+++ b/.gitlab-ci/gcc10-mpi-coverage.yml
@@ -6,7 +6,7 @@ coverage:gcc10-mpi-coverage:
     - mkdir -p build/gcc10-cov-mpi
     - cd build/gcc10-cov-mpi
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Coverage
-    - make
+    - make -j 4
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-cov-mpi"
     paths:
diff --git a/.gitlab-ci/gcc10-mpi-release.yml b/.gitlab-ci/gcc10-mpi-release.yml
index 5e8277ad61a089d8baa72e5cc7e8d2b7219ad775..198fe1785140889fb65d54e3fbdc4f9fe8ba94af 100644
--- a/.gitlab-ci/gcc10-mpi-release.yml
+++ b/.gitlab-ci/gcc10-mpi-release.yml
@@ -6,7 +6,7 @@ test:gcc10-mpi-release:
     - mkdir -p build/gcc10-release-mpi
     - cd build/gcc10-release-mpi
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
-    - make
+    - make -j 4
     - make test
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-release-mpi"
diff --git a/.gitlab-ci/gcc10-seq-coverage.yml b/.gitlab-ci/gcc10-seq-coverage.yml
index 5cacacd5d02a0838c36b852076c8cb6ad0573031..81d8e3b453496c73a20bfe4515c08c2faa0f5991 100644
--- a/.gitlab-ci/gcc10-seq-coverage.yml
+++ b/.gitlab-ci/gcc10-seq-coverage.yml
@@ -6,7 +6,7 @@ coverage:gcc10-seq-coverage:
     - mkdir -p build/gcc10-cov
     - cd build/gcc10-cov
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Coverage
-    - make
+    - make -j 4
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-cov"
     paths:
diff --git a/.gitlab-ci/gcc10-seq-release.yml b/.gitlab-ci/gcc10-seq-release.yml
index b4423bbd31f947698a5fa4dc13171e0582fc5d32..8a34f11b0dea3b4df56a2e8883c8d08245ddac2c 100644
--- a/.gitlab-ci/gcc10-seq-release.yml
+++ b/.gitlab-ci/gcc10-seq-release.yml
@@ -6,7 +6,7 @@ test:gcc10-seq-release:
     - mkdir -p build/gcc10-release-seq
     - cd build/gcc10-release-seq
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
-    - make
+    - make -j 4
     - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-release-seq"