diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index a6230a9..3f95cb1 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -113,7 +113,7 @@ jobs:
             }
 
       - name: Upload benchmark artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: benchmark-results
           path: benchmark-results/
diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 11d4658..31081b4 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -91,7 +91,7 @@ jobs:
           kill $STREAMLINE_PID || true
 
       - name: Upload benchmark results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: benchmark-results-${{ github.run_number }}
           path: benchmark-results/
diff --git a/.github/workflows/cross-sdk-integration.yml b/.github/workflows/cross-sdk-integration.yml
index d548dc0..c683112 100644
--- a/.github/workflows/cross-sdk-integration.yml
+++ b/.github/workflows/cross-sdk-integration.yml
@@ -43,7 +43,7 @@ jobs:
         run: cargo build --release
 
       - name: Upload binary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: streamline-binary
           path: target/release/streamline
diff --git a/.github/workflows/publish-benchmarks.yml b/.github/workflows/publish-benchmarks.yml
index a07ac9e..19278ed 100644
--- a/.github/workflows/publish-benchmarks.yml
+++ b/.github/workflows/publish-benchmarks.yml
@@ -103,7 +103,7 @@ jobs:
           git checkout main
 
       - name: Upload raw results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: benchmark-results-${{ github.sha }}
           path: benchmark-results/
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index fdce9e2..138beb7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -73,7 +73,7 @@ jobs:
           7z a ../../../streamline-${{ github.ref_name }}-${{ matrix.target }}.zip streamline.exe streamline-cli.exe
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: streamline-${{ matrix.target }}
           path: streamline-${{ github.ref_name }}-${{ matrix.target }}.*