diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9e9ee30..6400dcd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -161,7 +161,6 @@ jobs:
       - name: Check headers
         if: success() || failure()
         run: |
-          pipx install unbeheader
           echo '::add-matcher::.github/matchers/headers-problem-matcher.json'
           unbehead --check
           echo '::remove-matcher owner=headers::'