diff --git a/.github/workflows/run-system-tests.yaml b/.github/workflows/run-system-tests.yaml
index 12f6356c4c4..8760acf2b7a 100644
--- a/.github/workflows/run-system-tests.yaml
+++ b/.github/workflows/run-system-tests.yaml
@@ -62,21 +62,20 @@ jobs:
     needs:
     - build
     # If you change the following comment, update the pattern in the update_system_test_reference.sh script to match.
-    uses: DataDog/system-tests/.github/workflows/system-tests.yml@main # system tests are pinned on release branches only
+    uses: DataDog/system-tests/.github/workflows/system-tests.yml@adcd0e88eecd59a179f9470d76a5bc48eed14524 # system tests are pinned on release branches only
     permissions:
       contents: read
       id-token: write
-      packages: write
     with:
       library: java
        # If you change the following comment, update the pattern in the update_system_test_reference.sh script to match.
-      ref: "main" # system tests are pinned on release branches only
+      ref: adcd0e88eecd59a179f9470d76a5bc48eed14524 # system tests are pinned on release branches only
       binaries_artifact: binaries
       desired_execution_time: 900  # 15 minutes
       scenarios_groups: tracer-release
       excluded_scenarios: APM_TRACING_E2E_OTEL,APM_TRACING_E2E_SINGLE_SPAN,PROFILING  # exclude flaky scenarios
       skip_empty_scenarios: true
-      push_to_test_optimization: false # disabled to avoid pushing to Test Optimization while API key is transitioning to system-tests
+      push_to_test_optimization: true
 
   # Ensure the main job is run to completion
   check: