diff --git a/Dockerfile b/Dockerfile
index 1b5ef69..7ae81e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.22-bookworm
+FROM golang:1.23-bookworm@sha256:ef30001eeadd12890c7737c26f3be5b3a8479ccdcdc553b999c84879875a27ce
 
 WORKDIR /app