diff --git a/docs/buildstrategies.md b/docs/buildstrategies.md
index b2d91abdeb..6a03b8fb1e 100644
--- a/docs/buildstrategies.md
+++ b/docs/buildstrategies.md
@@ -567,7 +567,7 @@ metadata:
 spec:
   buildSteps:
     - name: build-and-push
-      image: gcr.io/kaniko-project/executor:v1.9.0
+      image: gcr.io/kaniko-project/executor:v1.21.0 Release
       workingDir: $(params.shp-source-root)
       securityContext:
         runAsUser: 0
@@ -611,7 +611,7 @@ metadata:
 spec:
   buildSteps:
     - name: build-and-push
-      image: gcr.io/kaniko-project/executor:v1.9.0
+      image: gcr.io/kaniko-project/executor:v1.21.0 Release
       workingDir: $(params.shp-source-root)
       securityContext:
         runAsUser: 0