diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 0b9f0bf55d..d06cf3798a 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -30,6 +30,7 @@ jobs:
           pipenv run pip install --no-deps file:plugins/aea-ledger-ethereum
           pipenv run pip install --no-deps file:plugins/aea-ledger-cosmos
           pipenv run pip install --no-deps file:plugins/aea-ledger-fetchai
+          pipenv lock
       - name: Check plugin consistency
         run: |
           # these two files should not be different;