diff --git a/Dockerfile b/Dockerfile
index 0e77e8f..44a7c50 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.12-slim-bullseye
+FROM python:3.12-slim-bullseye@sha256:3207ac8a818335cc1c045ce5bcc3b1adf345ee80049d7734151489c66fc64414
 
 ARG TARGETOS
 ARG TARGETARCH