diff --git a/.github/workflows/autotools-cmake.yml b/.github/workflows/autotools-cmake.yml
index 32670ebe..ae0ef278 100644
--- a/.github/workflows/autotools-cmake.yml
+++ b/.github/workflows/autotools-cmake.yml
@@ -58,7 +58,7 @@ jobs:
         shell: bash
     runs-on: "${{ matrix.os }}"
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
     - name: (Linux) Install build dependencies
       if: "${{ runner.os == 'Linux' }}"
diff --git a/.github/workflows/cmake-required-version.yml b/.github/workflows/cmake-required-version.yml
index 79616b5a..f0fd4fa3 100644
--- a/.github/workflows/cmake-required-version.yml
+++ b/.github/workflows/cmake-required-version.yml
@@ -43,7 +43,7 @@ jobs:
     name: Ensure realistic minimum CMake version requirement
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
     - name: Install ancient CMake
       run: |
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 912e78b6..4c0a696b 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -43,7 +43,7 @@ jobs:
     name: Enforce codespell-clean spelling
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - uses: codespell-project/actions-codespell@94259cd8be02ad2903ba34a22d9c13de21a74461  # v2.0
       with:
         path: expat/
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 7ea8c05a..3b0d0074 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -45,7 +45,7 @@ jobs:
     env:
       CFLAGS: -g3 -pipe
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - name: Install build dependencies
       run: |-
         set -x -u
diff --git a/.github/workflows/cppcheck.yml b/.github/workflows/cppcheck.yml
index 9c850c7a..e360aa97 100644
--- a/.github/workflows/cppcheck.yml
+++ b/.github/workflows/cppcheck.yml
@@ -43,7 +43,7 @@ jobs:
     name: Run Cppcheck
     runs-on: macos-11
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - name: Install runtime dependencies
       run: |
         exec brew install cppcheck findutils
diff --git a/.github/workflows/expat_config_h.yml b/.github/workflows/expat_config_h.yml
index 54c991d8..e4506f50 100644
--- a/.github/workflows/expat_config_h.yml
+++ b/.github/workflows/expat_config_h.yml
@@ -43,7 +43,7 @@ jobs:
     name: Check expat_config.h.{in,cmake} for regressions
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - name: Check expat_config.h.{in,cmake} for regressions
       run: |
         set -v
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 7f8fb312..784f7d3f 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -83,7 +83,7 @@ jobs:
     env:
       CFLAGS: -g3 -pipe
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - name: Install build dependencies (MinGW)
       if: "${{ contains(matrix.FLAT_ENV, 'mingw') }}"
       run: |-
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 7bd582a8..4a67a898 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -53,7 +53,7 @@ jobs:
             FLAT_ENV: CC=clang CXX=clang++ LD=clang++ QA_SANITIZER=address
     runs-on: macos-11
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
     - name: Install build dependencies
       run: |
         sudo rm /usr/local/bin/2to3  # so that "brew link" will work
diff --git a/.github/workflows/valid-xml.yml b/.github/workflows/valid-xml.yml
index 0c763e3c..434af945 100644
--- a/.github/workflows/valid-xml.yml
+++ b/.github/workflows/valid-xml.yml
@@ -43,7 +43,7 @@ jobs:
     name: Ensure well-formed and valid XML
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608  # v4.1.0
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11  # v4.1.1
 
     - name: Install build dependencies
       run: |-