diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 0a0ffbb..0ac2c94 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,28 +10,28 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        gcc_v: [10] # Version of GFortran we want to use.
-        python-version: [3.9]
+        gcc_v: [12] # Version of GFortran we want to use.
+        python-version: ["3.10"]
     env:
       FC: gfortran-${{ matrix.gcc_v }}
       GCC_V: ${{ matrix.gcc_v }}
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4.2.2
       with:
         submodules: recursive
 
     - name: Install Python
-      uses: actions/setup-python@v4 # Use pip to install latest CMake, & FORD/Jin2For, etc.
+      uses: actions/setup-python@v5.6.0 # Use pip to install latest CMake, & FORD/Jin2For, etc.
       with:
         python-version: ${{ matrix.python-version }}
 
     - name: Setup Graphviz
-      uses: ts-graphviz/setup-graphviz@v1
+      uses: ts-graphviz/setup-graphviz@v2.0.2
 
     - name: Setup Fortran Package Manager
-      uses: fortran-lang/setup-fpm@v5
+      uses: fortran-lang/setup-fpm@v7
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -39,7 +39,7 @@ jobs:
       if: contains( matrix.os, 'ubuntu')
       run: |
         python -m pip install --upgrade pip
-        pip install numpy matplotlib ford
+        pip install numpy matplotlib ford graphviz
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
 
     - name: Install GFortran Linux
@@ -71,7 +71,7 @@ jobs:
         COV_DIR: build/coverage
 
     - name: Upload coverage report
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v5.4.3
       with:
         files: build/coverage/coverage.info
 
@@ -80,7 +80,9 @@ jobs:
 
     - name: Deploy Documentation
       if: github.ref == 'refs/heads/master'
-      uses: JamesIves/github-pages-deploy-action@v4.4.1
+      uses: JamesIves/github-pages-deploy-action@v4.7.3
       with:
         branch: gh-pages # The branch the action should deploy to.
         folder: doc  # The folder the action should deploy.
+        single-commit: true
+