diff --git a/.woodpecker/test.yml b/.woodpecker/test.yml
index 6224dc89..b038c15f 100644
--- a/.woodpecker/test.yml
+++ b/.woodpecker/test.yml
@@ -15,7 +15,7 @@ steps:
     environment:
       # NB: we can't use the official helmunittest/helm-unittest image as it's rootless and WP does not support that
       # renovate: datasource=github-releases depName=helm-unittest/helm-unittest
-      - HELM_UNITTEST_VERSION=v0.5.0
+      - HELM_UNITTEST_VERSION=v0.5.1
     commands:
       - helm plugin install --version $HELM_UNITTEST_VERSION https://github.com/helm-unittest/helm-unittest > /dev/null
       - helm unittest --strict -f 'unittests/**/*.yaml' ./charts/woodpecker/charts/server/ ./charts/woodpecker/charts/agent