diff --git a/.github/workflows/emscripten.yaml b/.github/workflows/emscripten.yaml
index c21bb3af..d2dad41b 100644
--- a/.github/workflows/emscripten.yaml
+++ b/.github/workflows/emscripten.yaml
@@ -24,7 +24,7 @@ jobs:
           submodules: true
           fetch-depth: 0
 
-      - uses: pypa/cibuildwheel@v2.20
+      - uses: pypa/cibuildwheel@v2.21
         env:
           CIBW_PLATFORM: pyodide
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 35455713..1c101318 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -128,7 +128,7 @@ jobs:
 
       - uses: yezz123/setup-uv@v4
 
-      - uses: pypa/cibuildwheel@v2.20
+      - uses: pypa/cibuildwheel@v2.21
         with:
           only: "${{ matrix.only }}"
         env:
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 74870f29..b29d4ba9 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -57,7 +57,7 @@ jobs:
         with:
           platforms: all
 
-      - uses: pypa/cibuildwheel@v2.20
+      - uses: pypa/cibuildwheel@v2.21
         env:
           CIBW_BUILD: cp${{ matrix.python }}-manylinux_*
           CIBW_ARCHS: ${{ matrix.arch }}
@@ -120,7 +120,7 @@ jobs:
         with:
           python-version: 3.8
 
-      - uses: pypa/cibuildwheel@v2.20
+      - uses: pypa/cibuildwheel@v2.21
         env:
           CIBW_BUILD: ${{ matrix.build }}
           CIBW_ARCHS: ${{ matrix.arch }}
@@ -159,7 +159,7 @@ jobs:
         run: ls -lh dist
 
       - name: Generate artifact attestation for sdist and wheels
-        uses: actions/attest-build-provenance@6149ea5740be74af77f260b9db67e633f6b0a9a1 # v1.4.2
+        uses: actions/attest-build-provenance@1c608d11d69870c2092266b3f9a6f3abbf17002c # v1.4.3
         with:
           subject-path: "dist/boost_histogram-*"