diff --git a/Dockerfile b/Dockerfile
index 76ced13..4c4bfcb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.10
+FROM alpine:3.11
 
 ARG ARG_NGINX_VERSION
 ARG ARG_NGX_GEOIP2_VERSION
diff --git a/build.sh b/build.sh
index da4eb4d..ed29c0e 100755
--- a/build.sh
+++ b/build.sh
@@ -30,5 +30,5 @@ fi
 
 if [ x$LATEST = "xtrue" ]; then
     docker tag "$DOCKER_IMAGE":"$NGINX_VERSION" "$DOCKER_IMAGE":latest
-    docker push "$DOCKER_IMAGE":latest
+    [ x$PUSH = "xtrue" ] && docker push "$DOCKER_IMAGE":latest
 fi
diff --git a/conf.env b/conf.env
index d321a11..acd9ad8 100644
--- a/conf.env
+++ b/conf.env
@@ -1,3 +1,3 @@
-NGINX_VERSION=1.17.6
+NGINX_VERSION=1.17.7
 NGX_GEOIP2_VERSION=3.3
 DOCKER_IMAGE=dcarrillo/nginx
diff --git a/tests/test.sh b/tests/test.sh
index 3207875..f77fb9f 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -9,9 +9,7 @@ fi
 trap _catch_err ERR
 trap _cleanup EXIT
 
-LOCAL_DIR=$(dirname "$0")
-
-LOCAL_DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+LOCAL_DIR="$(cd "$(dirname "$0")" ; pwd -P)"
 . "$LOCAL_DIR"/../conf.env
 
 TMP_DIR=$(mktemp -d)
@@ -65,7 +63,7 @@ docker run --name "${NGINX_VERSION}"_test --rm -p 65521:80 -p 65523:443 \
            -v "$TMP_DIR"/cert.pem:/tmp/cert.pem:ro \
            -v "$TMP_DIR"/cert.key:/tmp/cert.key:ro \
            -v "$TMP_DIR"/dhparams.pem:/tmp/dhparams.pem:ro \
-           -d "${DOCKER_IMAGE}":"${NGINX_VERSION}"
+           -d "${DOCKER_IMAGE}":"${NGINX_VERSION}" > /dev/null
 
 for request in http://localhost:65521/nginx_status https://localhost:65523/nginx_status; do
     printf "\nRequesting %s\n" $request