diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8ffd12e3..b62cca20 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,9 +13,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - {os: ubuntu-20.04, cc: gcc-10, cxx: g++-10}
-          - {os: ubuntu-20.04, cc: clang-13, cxx: clang++-13}
-          - {os: macos-12, cc: gcc-11, cxx: g++-11}
+          - {os: ubuntu-22.04, cc: gcc-12, cxx: g++-12}
+          - {os: ubuntu-22.04, cc: clang-15, cxx: clang++-15}
+          - {os: macos-12, cc: gcc-12, cxx: g++-12}
           - {os: macos-12, cc: /usr/local/opt/llvm/bin/clang, cxx: /usr/local/opt/llvm/bin/clang++}
 
     runs-on: ${{ matrix.os }}
@@ -24,22 +24,22 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Install ubuntu dependencies
-      if: matrix.os == 'ubuntu-20.04'
+      if: matrix.os == 'ubuntu-22.04'
       run: >
         sudo apt-get update &&
         sudo apt-get install lsb-release wget software-properties-common &&
         wget -O /tmp/llvm.sh https://apt.llvm.org/llvm.sh && sudo chmod +x /tmp/llvm.sh && sudo /tmp/llvm.sh 13 &&
         sudo apt-get install
-        clang-13
-        g++-10
-        gfortran-10
+        clang-15
+        g++-12
+        gfortran-12
         hdf5-tools
         libblas-dev
         libboost-dev
-        libclang-13-dev
-        libc++-13-dev
-        libc++abi-13-dev
-        libomp-13-dev
+        libclang-15-dev
+        libc++-15-dev
+        libc++abi-15-dev
+        libomp-15-dev
         libfftw3-dev
         libgfortran5
         libgmp-dev
@@ -49,7 +49,7 @@ jobs:
         openmpi-bin
         openmpi-common
         openmpi-doc
-        python3-clang-13
+        python3-clang-15
         python3-dev
         python3-mako
         python3-matplotlib
@@ -63,7 +63,7 @@ jobs:
     - name: Install homebrew dependencies
       if: matrix.os == 'macos-12'
       run: |
-        brew install gcc@11 llvm boost fftw hdf5 open-mpi openblas
+        brew install gcc@12 llvm boost fftw hdf5 open-mpi openblas
         pip3 install mako numpy scipy mpi4py
         pip3 install -r requirements.txt
 
@@ -82,7 +82,7 @@ jobs:
       env:
         CC: ${{ matrix.cc }}
         CXX: ${{ matrix.cxx }}
-        FC: gfortran-10
+        FC: gfortran-12
         LIBRARY_PATH: /usr/local/opt/llvm/lib
       run: |
         source $HOME/install/share/triqs/triqsvars.sh