diff --git a/Dockerfile b/Dockerfile
index dcc8575f..e722f768 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 FROM quay.io/operator-framework/helm-operator:v1.41.1
 
 ENV HOME=/opt/helm