diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 717d4ce..3916f53 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -102,7 +102,7 @@ jobs:
 
       - name: Upload coverage artifact
         if: matrix.python-version == '3.12'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-cloudflare-auth
           path: coverage-cloudflare-auth.xml
@@ -150,7 +150,7 @@ jobs:
 
       - name: Upload coverage artifact
         if: matrix.python-version == '3.12'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-gcs-utilities
           path: coverage-gcs-utilities.xml
diff --git a/.github/workflows/slsa-provenance.yml b/.github/workflows/slsa-provenance.yml
index f8a4253..781a31a 100644
--- a/.github/workflows/slsa-provenance.yml
+++ b/.github/workflows/slsa-provenance.yml
@@ -81,7 +81,7 @@ jobs:
           echo "hashes=$HASHES" >> $GITHUB_OUTPUT
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4.5.0
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: dist-${{ steps.version.outputs.version }}
           path: dist/