diff --git a/backend/Dockerfile b/backend/Dockerfile
index d676c83..4f34db3 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.19.1
 
 RUN addgroup -S nonroot \
     && adduser -S nonroot -G nonroot