diff --git a/.github/workflows/go-tests.yml b/.github/workflows/go-tests.yml
index c7f42af..d4cd698 100644
--- a/.github/workflows/go-tests.yml
+++ b/.github/workflows/go-tests.yml
@@ -109,7 +109,7 @@ jobs:
         run: go build -v -o courierx-core .
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: courierx-core
           path: apps/core-go/courierx-core
diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index 06a85b8..e87a0c1 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -90,7 +90,7 @@ jobs:
 
       - name: Upload logs
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: integration-logs
           path: |
diff --git a/.github/workflows/load-tests.yml b/.github/workflows/load-tests.yml
index 0aa2a98..f643191 100644
--- a/.github/workflows/load-tests.yml
+++ b/.github/workflows/load-tests.yml
@@ -37,7 +37,7 @@ jobs:
           k6 run --out json=results.json send-email.js
 
       - name: Upload results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: k6-results
           path: tests/load/results.json
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 34d433e..7bf2ea1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -38,7 +38,7 @@ jobs:
           go build -ldflags="-s -w" -o courierx-core-${{ matrix.goos }}-${{ matrix.goarch }} cmd/server/main.go
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: courierx-core-${{ matrix.goos }}-${{ matrix.goarch }}
           path: apps/core-go/courierx-core-${{ matrix.goos }}-${{ matrix.goarch }}