diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ac79908f..f721366b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [windows-2022, ubuntu-22.04, macos-13]
+        os: [windows-2022, ubuntu-24.04, macos-13]
 
     env:
       AZURE_PASSWORD: ${{ secrets.AZURE_PASSWORD }}
@@ -62,7 +62,17 @@ jobs:
             7.0
             9.0
             10.0
-
+      - name: Install mono
+        if: runner.os == 'Linux'
+        # check https://www.mono-project.com/download/stable/#download-lin
+        run: |
+          sudo apt install ca-certificates gnupg
+          sudo gpg --homedir /tmp --no-default-keyring --keyring gnupg-ring:/usr/share/keyrings/mono-official-archive-keyring.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+          sudo chmod +r /usr/share/keyrings/mono-official-archive-keyring.gpg
+          echo "deb [signed-by=/usr/share/keyrings/mono-official-archive-keyring.gpg] https://download.mono-project.com/repo/ubuntu stable-focal main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
+          sudo apt update
+          sudo apt install -y mono-complete
+          mono --version
       - name: Cache Tools
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
         with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index e8a8b910..fe9eea57 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
@@ -35,6 +35,18 @@ jobs:
           8.0
           9.0
 
+    - name: Install mono
+      if: runner.os == 'Linux'
+      # check https://www.mono-project.com/download/stable/#download-lin
+      run: |
+        sudo apt install ca-certificates gnupg
+        sudo gpg --homedir /tmp --no-default-keyring --keyring gnupg-ring:/usr/share/keyrings/mono-official-archive-keyring.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+        sudo chmod +r /usr/share/keyrings/mono-official-archive-keyring.gpg
+        echo "deb [signed-by=/usr/share/keyrings/mono-official-archive-keyring.gpg] https://download.mono-project.com/repo/ubuntu stable-focal main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
+        sudo apt update
+        sudo apt install -y mono-complete
+        mono --version
+
     - name: Cache Tools
       uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
       with: