diff --git a/Dockerfile b/Dockerfile
index bea18c8..bcc800e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.23-alpine3.20
+FROM golang:1.23-alpine3.20@sha256:6a8532e5441593becc88664617107ed567cb6862cb8b2d87eb33b7ee750f653c
 
 WORKDIR /app