diff --git a/README.md b/README.md
index 3829332..58151e4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Squid4 with SSL proxying
 
-This dockerfile builds a Squid 4.0.7 instance and includes all the necessary
+This dockerfile builds a Squid 4 instance and includes all the necessary
 tooling to run it as a MITM (man-in-the-middle) SSL proxy.
 
 There's a number of reasons to do this - the big one being optimizing caching
diff --git a/docker-squid/Dockerfile b/docker-squid/Dockerfile
index 960a101..da02ebc 100644
--- a/docker-squid/Dockerfile
+++ b/docker-squid/Dockerfile
@@ -4,7 +4,7 @@ RUN sed s:deb:deb-src: /etc/apt/sources.list >> /etc/apt/sources.list
 
 RUN apt-get update && apt-get build-dep -y squid3 && apt-get install -y wget tar xz-utils libssl-dev
 
-ARG SQUID_VERSION=4.0.8
+ARG SQUID_VERSION=4.0.12
 
 # TODO: verify the squid download with the signing key
 RUN mkdir /src \