diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c660792..7919a73 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,22 +8,16 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         toolchain:
-          # - { compiler: gcc, version: 13 }
-          - { compiler: gcc, version: 10 }
-          - { compiler: intel, version: 2023.2 }
-          # - { compiler: intel-classic, version: 2021.10 }
+          - { compiler: gcc, version: 13 }
+          - { compiler: intel, version: 2024.1 }
+          - { compiler: intel-classic, version: 2021.10 }
+          - { compiler: lfortran, version: 0.33.0 }
         exclude:
           - os: macos-latest
-            toolchain: { compiler: intel, version: 2023.2 }
-          # - os: macos-latest
-          #   toolchain: { compiler: intel-classic, version: 2021.10 }
+            toolchain: { compiler: intel, version: 2024.1 }
         include:
           - os: ubuntu-latest
             toolchain: { compiler: nvidia-hpc, version: 23.11 }
-          - os: ubuntu-latest
-            toolchain: { compiler: intel-classic, version: 2021.10 }
-          # - os: macos-13
-          #   toolchain: { compiler: intel-classic, version: 2021.10 }
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4