diff --git a/.github/workflows/lib-injection.yml b/.github/workflows/lib-injection.yml
index 332a39be93..01acdad355 100644
--- a/.github/workflows/lib-injection.yml
+++ b/.github/workflows/lib-injection.yml
@@ -50,8 +50,8 @@ jobs:
     env:
       TEST_LIBRARY: ruby
       WEBLOG_VARIANT: ${{ matrix.weblog-variant }}
-      DOCKER_REGISTRY_IMAGES_PATH: ghcr.io/datadog
-      DOCKER_IMAGE_TAG: ${{ github.sha }}
+      LIB_INIT_IMAGE: ghcr.io/datadog/dd-trace-rb/dd-lib-ruby-init:${{ github.sha }}
+      LIBRARY_INJECTION_TEST_APP_IMAGE: ghcr.io/datadog/system-tests/${{ matrix.weblog-variant }}:latest
       BUILDX_PLATFORMS: linux/amd64,linux/arm64/v8
     steps:
     - name: Checkout system tests
@@ -64,7 +64,7 @@ jobs:
       uses: ./.github/actions/install_runner
 
     - name: Run K8s Lib Injection Tests
-      run: ./run.sh K8S_LIB_INJECTION_BASIC
+      run: ./run.sh K8S_LIBRARY_INJECTION_BASIC
 
     - name: Compress logs
       id: compress_logs