diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index a931fc9..b4e4272 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -19,12 +19,12 @@
       environment: production
       steps:
         - name: Check out the code
-          uses: actions/checkout@v4
+          uses: actions/checkout@v6
 
         - name: Set up Python
           uses: actions/setup-python@v4
           with:
-            python-version: '3.12'
+            python-version: '3.13'
 
         - name: Install dependencies
           run: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b2cc5a..b3e79f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,12 +24,12 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.12'
+          python-version: '3.13'
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 66113ca..d975b97 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,12 +26,12 @@ jobs:
           echo "🔎 The branch is ${{ github.ref_name }} in ${{ github.repository }}."
         
       - name: Check out repository code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
 
       - name: Install Python dependencies
diff --git a/.github/workflows/guard.yml b/.github/workflows/guard.yml
index 1ba723f..ba56f9b 100644
--- a/.github/workflows/guard.yml
+++ b/.github/workflows/guard.yml
@@ -16,12 +16,12 @@
       steps:
         - name: Preamble
           run: |
-            echo "🎉 A $EVENT triggered a ${{ runner.os }} job."
-            echo "🔎 The branch is $BRANCH in $REPO."
+            echo "🎉 A ${{ github.event_name }} triggered a ${{ runner.os }} job."
+            echo "🔎 The branch is ${{ github.ref_name }} in ${{ github.repository }}."
         - name: Check out repository code
-          uses: actions/checkout@v4
+          uses: actions/checkout@v6
         - name: Guard the main branch
-          if: ${{ env.HEAD != 'staging' && env.HEAD != ''}}
+          if: ${{ github.event_name == 'pull_request' && github.head_ref != 'staging' }}
           run: |
             echo "🚫 The main branch is protected."
             echo "🚫 Pull requests to main must come from staging branch."
diff --git a/.github/workflows/super-linter.yml b/.github/workflows/super-linter.yml
index 69b531f..adba8bf 100644
--- a/.github/workflows/super-linter.yml
+++ b/.github/workflows/super-linter.yml
@@ -19,7 +19,7 @@
       runs-on: ubuntu-latest
       steps:
         - name: Checkout code
-          uses: actions/checkout@v4
+          uses: actions/checkout@v6
           with:
             # Full git history is needed to get a proper
             # list of changed files within `super-linter`
diff --git a/requirements.txt b/requirements.txt
index 5678a43..9d9cf87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
 basemap==2.0.0
 cloud-sptheme==1.10.1.post20200504175005
-matplotlib==3.8.4
+matplotlib==3.10.8
 numpy==2.2.6
 pytest==8.3.2
 pytest-cov==5.0.0
-scipy==1.14.0
+scipy==1.17.1
 seaborn==0.13.2
 sphinx==7.3.7
 sphinx-autoapi==3.1.2
diff --git a/requirements/production.txt b/requirements/production.txt
index cdf928a..90f1bb4 100644
--- a/requirements/production.txt
+++ b/requirements/production.txt
@@ -1,10 +1,10 @@
 basemap==2.0.0
 cloud-sptheme==1.10.1.post20200504175005
-matplotlib==3.8.4
+matplotlib==3.10.8
 numpy==2.2.6
 pytest==9.0.3
 pytest-cov==5.0.0
-scipy==1.14.0
+scipy==1.17.1
 seaborn==0.13.2
 sphinx==7.3.7
 sphinx-autoapi==3.1.2
diff --git a/requirements/staging.txt b/requirements/staging.txt
index cdf928a..90f1bb4 100644
--- a/requirements/staging.txt
+++ b/requirements/staging.txt
@@ -1,10 +1,10 @@
 basemap==2.0.0
 cloud-sptheme==1.10.1.post20200504175005
-matplotlib==3.8.4
+matplotlib==3.10.8
 numpy==2.2.6
 pytest==9.0.3
 pytest-cov==5.0.0
-scipy==1.14.0
+scipy==1.17.1
 seaborn==0.13.2
 sphinx==7.3.7
 sphinx-autoapi==3.1.2
diff --git a/requirements/testing.txt b/requirements/testing.txt
index cdf928a..90f1bb4 100644
--- a/requirements/testing.txt
+++ b/requirements/testing.txt
@@ -1,10 +1,10 @@
 basemap==2.0.0
 cloud-sptheme==1.10.1.post20200504175005
-matplotlib==3.8.4
+matplotlib==3.10.8
 numpy==2.2.6
 pytest==9.0.3
 pytest-cov==5.0.0
-scipy==1.14.0
+scipy==1.17.1
 seaborn==0.13.2
 sphinx==7.3.7
 sphinx-autoapi==3.1.2