diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 527def4..cd33e90 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -22,3 +22,5 @@ updates:
       interval: weekly
       day: "tuesday"
       time: "21:00"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c04c1b5..76be384 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
 
       - uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # pin@v1.268.0
         with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index c3e823a..901b2f6 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -25,21 +25,21 @@ jobs:
 
     steps:
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v4
+      uses: github/codeql-action/init@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0
       with:
         languages: ${{ matrix.language }}
 
     # 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@v4
+      uses: github/codeql-action/autobuild@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0
     #- run: |
     #   make bootstrap
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v4
+      uses: github/codeql-action/analyze@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 808975c..7076d85 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
 
       - uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # pin@v1.268.0
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 45e785c..c661a28 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index be3856a..cbef682 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
 
       - uses: ruby/setup-ruby@8aeb6ff8030dd539317f8e1769a044873b56ea71 # pin@v1.268.0
         with: