diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 7c6aa5642..3846df1b0 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -17,7 +17,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get update && sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-dev libnlopt-cxx-dev libboost-all-dev libbenchmark-dev
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release
diff --git a/.github/workflows/benchmark_on_pr.yml b/.github/workflows/benchmark_on_pr.yml
index 491bb57d0..0357c0160 100644
--- a/.github/workflows/benchmark_on_pr.yml
+++ b/.github/workflows/benchmark_on_pr.yml
@@ -22,7 +22,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get update && sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-dev libnlopt-cxx-dev libboost-all-dev libbenchmark-dev
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release
diff --git a/.github/workflows/build-mac.yml b/.github/workflows/build-mac.yml
index fbbf75772..a64f75882 100644
--- a/.github/workflows/build-mac.yml
+++ b/.github/workflows/build-mac.yml
@@ -20,7 +20,7 @@ jobs:
     - name: installPackages
       run: brew install eigen && brew install gsl && brew install nlopt && brew install boost && brew install libomp && brew install nlohmann-json
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake ..
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5013384a9..4bf8d86cf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-dev libnlopt-cxx-dev libboost-all-dev nlohmann-json3-dev
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. 
diff --git a/.github/workflows/build_on_windows.yml b/.github/workflows/build_on_windows.yml
index 040b6f302..b6436e8c2 100644
--- a/.github/workflows/build_on_windows.yml
+++ b/.github/workflows/build_on_windows.yml
@@ -26,7 +26,7 @@ jobs:
     - name: Refresh Shell
       run: refreshenv
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: cmake -S . -B build -DUseConan=On -DCMAKE_BUILD_TYPE=Release
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index fe305914c..bfacf3503 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -33,7 +33,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get update && sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-dev libnlopt-cxx-dev libboost-all-dev lcov
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. -DEnableCoverage=On
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 61513e687..8d2c606e2 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -42,7 +42,7 @@ jobs:
         if: matrix.language == 'cpp'
         
       - name: Get number of CPU cores
-        uses: SimenB/github-actions-cpu-cores@v1
+        uses: SimenB/github-actions-cpu-cores@v2
         id: cpu-cores
         if: matrix.language == 'cpp'
       - name: cmake
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index f2fab6ee4..bcad13eb7 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -20,7 +20,7 @@ jobs:
      - name: installPackages
        run: sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-cxx-dev libboost-all-dev doxygen
      - name: Get number of CPU cores
-       uses: SimenB/github-actions-cpu-cores@v1
+       uses: SimenB/github-actions-cpu-cores@v2
        id: cpu-cores
      - name: cmake
        run: mkdir build && cd build && cmake .. && cmake --build . -j${{ steps.cpu-cores.outputs.count }} -t doc
diff --git a/.github/workflows/test-mac.yml b/.github/workflows/test-mac.yml
index c779b53c0..ea569c504 100644
--- a/.github/workflows/test-mac.yml
+++ b/.github/workflows/test-mac.yml
@@ -24,7 +24,7 @@ jobs:
     - name : installPackages
       run : brew install eigen gsl nlopt boost libomp nlohmann-json
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. 
@@ -44,7 +44,7 @@ jobs:
     - name : installPackages
       run : brew install eigen gsl boost libomp nlohmann-json
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir buildNoNLOPT && cd buildNoNLOPT && cmake .. 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ddb279532..0e4490ab5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,7 +24,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get update && sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libnlopt-dev libnlopt-cxx-dev libboost-all-dev
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir build && cd build && cmake .. 
@@ -44,7 +44,7 @@ jobs:
     - name : installPackages
       run : sudo apt-get update && sudo apt-get install --no-install-recommends --yes libgsl-dev libeigen3-dev libboost-all-dev
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: mkdir buildNoNLOPT && cd buildNoNLOPT && cmake .. 
diff --git a/.github/workflows/windows_unit_tests.yml b/.github/workflows/windows_unit_tests.yml
index 9856b74b1..86d3177ed 100644
--- a/.github/workflows/windows_unit_tests.yml
+++ b/.github/workflows/windows_unit_tests.yml
@@ -28,7 +28,7 @@ jobs:
     - name: Install conan
       run: pip install conan<2.0
     - name: Get number of CPU cores
-      uses: SimenB/github-actions-cpu-cores@v1
+      uses: SimenB/github-actions-cpu-cores@v2
       id: cpu-cores
     - name: cmake
       run: cmake -S . -B build -DUseConan=On -DCMAKE_BUILD_TYPE=Release