diff --git a/Dockerfile b/Dockerfile
index 88b4084..cf9d1d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.15.0 as build
 
-ENV SQUID_VER 5.2
+ENV SQUID_VER 5.3
 
 RUN set -x && \
 	apk add --no-cache  \