diff --git a/chart/keel/Chart.yaml b/chart/keel/Chart.yaml
index ded85995..e8f94e4d 100644
--- a/chart/keel/Chart.yaml
+++ b/chart/keel/Chart.yaml
@@ -1,6 +1,9 @@
 apiVersion: v1
 name: keel
 description: Open source tool for automating Kubernetes deployment updates.
+# The chart version number here is just a template. The actual version number is
+# replaced during the chart build, see .github/workflows/releasechart.yaml
+# The way to trigger a chart release is using a tag "chart-{CHART_VERSION}"
 version: 1.0.5
 appVersion: 0.20.0
 keywords: