diff --git a/.github/workflows/test-on-iotlab.yml b/.github/workflows/test-on-iotlab.yml
index b57882cdaf..83e07823b6 100644
--- a/.github/workflows/test-on-iotlab.yml
+++ b/.github/workflows/test-on-iotlab.yml
@@ -109,7 +109,7 @@ jobs:
             -n "riot-ci-${{ matrix.boards.riot }}" -d 360 \
             -l 1,site=${{ matrix.boards.iotlab.site }}+archi=${{ matrix.boards.iotlab.archi }})
           iotlab-experiment wait -i ${IOTLAB_EXP_ID}
-          echo "::set-env name=IOTLAB_EXP_ID::${IOTLAB_EXP_ID}"
+          echo "IOTLAB_EXP_ID=${IOTLAB_EXP_ID}" >> $GITHUB_ENV
       - name: Run compile_and_test_for_board.py on ${{ matrix.boards.riot }}
         run: |
           ${COMPILE_AND_TEST_FOR_BOARD} --report-xml . ${{ matrix.boards.riot }} \