diff --git a/Dockerfile b/Dockerfile
index 3657852..6675b0d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.23.2 as build
+FROM golang:1.23.2@sha256:ad5c126b5cf501a8caef751a243bb717ec204ab1aa56dc41dc11be089fafcb4f as build
 WORKDIR /build
 ENV CGO_ENABLED=0
 ADD . /build