diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index eaecd6930..c136da40d 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -10,11 +10,11 @@ jobs:
       fail-fast: false
       matrix:
         build_type : [ Release, Debug ]
-        os : [ macos-latest, ubuntu-20.04 ]
+        os : [ macos-latest, ubuntu-22.04 ]
         include:
-          - os: ubuntu-20.04
-            cc: /usr/bin/gcc-10
-            cxx: /usr/bin/g++-10
+          - os: ubuntu-22.04
+            cc: /usr/bin/gcc-12
+            cxx: /usr/bin/g++-12
           - os: macos-latest
             cc: clang
             cxx: clang++
@@ -48,12 +48,12 @@ jobs:
       run: brew install ninja gcc@10 boost eigen open-mpi bison ccache
 
     - name: Install prerequisites Ubuntu packages
-      if: ${{ matrix.os == 'ubuntu-20.04' }}
+      if: ${{ matrix.os == 'ubuntu-22.04' }}
       run: |
         wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
         sudo apt-add-repository "deb https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main"
         sudo apt-get update
-        sudo apt-get -y install ninja-build g++-10 liblapack-dev libboost-dev libboost-serialization-dev libeigen3-dev openmpi-bin libopenmpi-dev libtbb-dev ccache flex bison cmake
+        sudo apt-get -y install ninja-build g++-12 liblapack-dev libboost-dev libboost-serialization-dev libeigen3-dev openmpi-bin libopenmpi-dev libtbb-dev ccache flex bison cmake
 
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
@@ -63,7 +63,7 @@ jobs:
 
 
     - name: Install doxygen for Release test
-      if: ${{ matrix.os == 'ubuntu-20.04' }}
+      if: ${{ matrix.os == 'ubuntu-22.04' }}
       run: |
         if [ "${{matrix.build_type}}" = "Release" ]; then
           sudo apt-get -y install libclang1-9 libclang-cpp9 graphviz fonts-liberation
@@ -144,7 +144,7 @@ jobs:
         cmake --build test_install_userexamples/build
 
     - name: Build+Deploy Dox
-      if: ${{ matrix.os == 'ubuntu-20.04' && matrix.build_type == 'Release' && github.ref == 'refs/heads/master' }}
+      if: ${{ matrix.os == 'ubuntu-22.04' && matrix.build_type == 'Release' && github.ref == 'refs/heads/master' }}
       working-directory: ${{github.workspace}}/build
       shell: bash
       run: |