diff --git a/boring-nginx/Dockerfile b/boring-nginx/Dockerfile
index d03cb34..b7ab764 100644
--- a/boring-nginx/Dockerfile
+++ b/boring-nginx/Dockerfile
@@ -2,7 +2,7 @@ FROM alpine:3.6
 
 ENV UID=991 GID=991
 
-ARG NGINX_VERSION=1.13.3
+ARG NGINX_VERSION=1.13.4
 ARG GPG_NGINX="B0F4 2533 73F8 F6F5 10D4  2178 520A 9993 A1C0 52F8"
 ARG BUILD_CORES