diff --git a/Dockerfile b/Dockerfile
index 870dbe8..703754e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-ARG TARGET_GO_VERSION=1.26.0
+ARG TARGET_GO_VERSION=1.26.0@sha256:fb612b7831d53a89cbc0aaa7855b69ad7b0caf603715860cf538df854d047b84
 
 # Build the manager binary
 FROM --platform=$BUILDPLATFORM golang:${TARGET_GO_VERSION} AS builder