diff --git a/znc/Dockerfile b/znc/Dockerfile
index 8c07fba..10dd352 100644
--- a/znc/Dockerfile
+++ b/znc/Dockerfile
@@ -2,26 +2,41 @@ FROM debian:jessie
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
-    build-essential \
-    libssl-dev \
-    libperl-dev \
-    pkg-config \
+    ca-certificates \
     curl \
-    --no-install-recommends
+    libdatetime-perl \
+    libglib2.0-0 \
+    libwww-perl \
+    perl \
+    && rm -rf /var/lib/apt/lists/*
 
 ENV HOME /home/user
 RUN useradd --create-home --home-dir $HOME user \
     && mkdir -p $HOME/.irssi \
     && chown -R user:user $HOME
 
-# get the source
-RUN mkdir $HOME/src && \
-    curl -sSL http://znc.in/releases/znc-latest.tar.gz | tar -v -C $HOME/src -xz --strip-components 1 && \
-    cd $HOME/src && \
-    ./configure && \
-    make -j8 && \
-    make install && \
-    rm -rf $HOME/src
+ENV LANG C.UTF-8
+
+ENV ZNC_VERSION 1.4
+
+RUN buildDeps=' \
+        build-essential \
+        libssl-dev \
+        libperl-dev \
+    ' \
+    && set -x \
+    && apt-get update && apt-get install -y $buildDeps --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/* \
+    && curl -sSL "http://znc.in/releases/znc-${ZNC_VERSION}.tar.gz" -o /tmp/znc.tar.gz \
+    && mkdir -p /usr/src/znc \
+    && tar -xzf /tmp/znc.tar.gz -C /usr/src/znc --strip-components 1 \
+    && rm /tmp/znc.tar.gz* \
+    && cd /usr/src/znc \
+    && ./configure \
+    && make -j8 \
+    && make install \
+    && rm -rf /usr/src/znc \
+    && apt-get purge -y --auto-remove $buildDeps
 
 WORKDIR $HOME
 USER user