diff --git a/Dockerfile b/Dockerfile
index efe6bd8..8da22b7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN apk add --update --no-cache ca-certificates
 ##    docker build --no-cache -t vela-kaniko:local .    ##
 ##########################################################
 
-FROM gcr.io/kaniko-project/executor:v1.11.0-debug
+FROM gcr.io/kaniko-project/executor:v1.11.0-debug@sha256:32ba2214921892c2fa7b5f9c4ae6f8f026538ce6b2105a93a36a8b5ee50fe517
 
 COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt