diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e01b70..f0cacd9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
       run: cargo llvm-cov --all-features --workspace --html --output-dir coverage-html
 
     - name: Upload coverage HTML
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: coverage-report
         path: coverage-html/
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 91504b9..edda0a7 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -54,14 +54,14 @@ jobs:
 
     - name: Upload crash artifacts
       if: steps.check_crashes.outputs.crashes_found == 'true'
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: fuzz-crashes-${{ matrix.target }}
         path: fuzz/artifacts/${{ matrix.target }}/
 
     - name: Upload corpus
       if: always()
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: fuzz-corpus-${{ matrix.target }}
         path: fuzz/corpus/${{ matrix.target }}/