diff --git a/contrib/ci-workers/vars/default.yml b/contrib/ci-workers/vars/default.yml
index 9afb8c55f..13a04e7b4 100644
--- a/contrib/ci-workers/vars/default.yml
+++ b/contrib/ci-workers/vars/default.yml
@@ -33,6 +33,7 @@ dist_deps: []
 buildbot_modules:
   - pip # Needs to be updated first so Buildbot installs
   - buildbot-worker
+  - pyflakes
 
 # Python modules required to run the Zcash RPC test suite
 rpc_test_modules: