diff --git a/executor/Dockerfile.executor b/executor/Dockerfile.executor
index 4722e22916..acd7f97f8e 100644
--- a/executor/Dockerfile.executor
+++ b/executor/Dockerfile.executor
@@ -1,4 +1,5 @@
 # Build the manager binary
+# 1.20-bookworm image points to the latest go 1.20.x
 FROM golang:1.20-bookworm as builder
 
 WORKDIR /workspace
diff --git a/operator/Dockerfile b/operator/Dockerfile
index 6824089d55..dc203033e4 100644
--- a/operator/Dockerfile
+++ b/operator/Dockerfile
@@ -1,4 +1,5 @@
 # Build the manager binary
+# 1.20-bookworm image points to the latest go 1.20.x
 FROM golang:1.20-bookworm as builder
 
 WORKDIR /workspace