diff --git a/.gitea/workflows/check.yml b/.gitea/workflows/check.yml
index 9786fe5..f1953e8 100644
--- a/.gitea/workflows/check.yml
+++ b/.gitea/workflows/check.yml
@@ -71,7 +71,7 @@ jobs:
           PYSLACK
       - name: Fetch pinned headless HTTP integration client
         env:
-          HEADLESS_CLIENT_REVISION: 0ced171305525ed9265e339e43e600572ec0dbac
+          HEADLESS_CLIENT_REVISION: db6594f473cad1ce814e485debbf388e2ecb9470
         run: |
           set -eu
           mkdir -p .headless-client