diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a9755f60..30c5ec04 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: j178/prek-action@1382ad72dea72f9d53832f2bcb65b3e87a947204 # v3.0.1
         env:
           # renovate: datasource=github-releases depName=j178/prek extractVersion=^v(?<version>.+)$
-          PREK_VERSION: 0.5.5
+          PREK_VERSION: 0.5.6
           # jactionlint's online rules (yo61/global decisions/2026-10-17-retire-zizmor.md).
           JACTIONLINT_ONLINE: 1
           GITHUB_TOKEN: ${{ github.token }}