diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 1dd4c3a..1943a2d 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -3,8 +3,8 @@ FROM alpine:3.3
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN adduser -D memcache
 
-ENV MEMCACHED_VERSION 1.4.26
-ENV MEMCACHED_SHA1 f0d4f89ead2ac48c6b9e8070178279c0a3d45559
+ENV MEMCACHED_VERSION 1.4.27
+ENV MEMCACHED_SHA1 b5869038dc5f2dce24f3a62806eadfd64d58662e
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \
diff --git a/debian/Dockerfile b/debian/Dockerfile
index eb7b0c8..3c0bfe4 100644
--- a/debian/Dockerfile
+++ b/debian/Dockerfile
@@ -7,8 +7,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 		libevent-2.0-5 \
 	&& rm -rf /var/lib/apt/lists/*
 
-ENV MEMCACHED_VERSION 1.4.26
-ENV MEMCACHED_SHA1 f0d4f89ead2ac48c6b9e8070178279c0a3d45559
+ENV MEMCACHED_VERSION 1.4.27
+ENV MEMCACHED_SHA1 b5869038dc5f2dce24f3a62806eadfd64d58662e
 
 RUN buildDeps=' \
 		gcc \