diff --git a/.github/workflows/optimized-tests.yml b/.github/workflows/optimized-tests.yml
index f52fb66..b466aad 100644
--- a/.github/workflows/optimized-tests.yml
+++ b/.github/workflows/optimized-tests.yml
@@ -40,7 +40,7 @@ jobs:
       timeout-minutes: 5
 
     - name: Upload unit test results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: always()
       with:
         name: unit-test-results-${{ matrix.go-version }}
@@ -89,7 +89,7 @@ jobs:
         CI: true
 
     - name: Upload integration test results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: always()
       with:
         name: integration-test-results-${{ matrix.go-version }}
@@ -127,7 +127,7 @@ jobs:
       timeout-minutes: 2
 
     - name: Upload benchmark results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: benchmark-results
         path: |
@@ -209,7 +209,7 @@ jobs:
         name: codecov-umbrella
 
     - name: Upload coverage results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: coverage-report
         path: |
@@ -243,7 +243,7 @@ jobs:
       timeout-minutes: 15
 
     - name: Upload test results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: always()
       with:
         name: full-test-results-${{ matrix.os }}-go${{ matrix.go-version }}