diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..d15c975e
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      actions:
+        patterns:
+          - "*"
diff --git a/.github/workflows/antivirus.yml b/.github/workflows/antivirus.yml
new file mode 100644
index 00000000..d62257da
--- /dev/null
+++ b/.github/workflows/antivirus.yml
@@ -0,0 +1,19 @@
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+permissions:
+  contents: read
+
+jobs:
+  gitavscan:
+    runs-on: ubuntu-latest
+    name: AV scan
+    steps:
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
+    - name: Git AV Scan
+      uses: djdefi/gitavscan@66a83ba98eca422f37322bc9851fa56195b252f3 # v23
+      with:
+        full: '--full'
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql.yml
similarity index 86%
rename from .github/workflows/codeql-analysis.yml
rename to .github/workflows/codeql.yml
index 86b54ea2..b1e7ad4e 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql.yml
@@ -38,11 +38,13 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -56,7 +58,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      uses: github/codeql-action/autobuild@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -69,4 +71,4 @@ jobs:
     #   ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 03894668..cfab6d70 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -17,13 +17,15 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.12]
+        python-version: [3.14]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
 
     # Install dependencies
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -35,7 +37,7 @@ jobs:
         jupyter-book build .
     # Deploy the book's HTML to gh-pages branch
     - name: GitHub Pages action
-      uses: peaceiris/actions-gh-pages@v3.6.1
+      uses: peaceiris/actions-gh-pages@84c30a85c19949d7eee79c4ff27748b70285e453 # v4.1.0
       if: github.ref == 'refs/heads/main'
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/virus.yml b/.github/workflows/virus.yml
deleted file mode 100644
index 95e5f691..00000000
--- a/.github/workflows/virus.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-on:
-  pull_request:
-    types: [assigned, opened, synchronize, reopened, closed]
-
-jobs:
-  gitavscan:
-    runs-on: ubuntu-latest
-    name: AV scan
-    steps:
-    - uses: actions/checkout@v2
-    - name: Git AV Scan
-      uses: djdefi/gitavscan@main