diff --git a/build/Dockerfile b/build/Dockerfile
index dd9933af42..380f6000f6 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.17.3
+FROM nginx:1.17.4
 
 # forward nginx access and error logs to stdout and stderr of the ingress
 # controller process
diff --git a/build/DockerfileForAlpine b/build/DockerfileForAlpine
index 6a9a905c13..5b15929995 100644
--- a/build/DockerfileForAlpine
+++ b/build/DockerfileForAlpine
@@ -1,4 +1,4 @@
-FROM nginx:1.17.3-alpine
+FROM nginx:1.17.4-alpine
 
 # forward nginx access and error logs to stdout and stderr of the ingress
 # controller process
diff --git a/build/DockerfileWithOpentracing b/build/DockerfileWithOpentracing
index f3e923e916..4f4e1d6e1e 100644
--- a/build/DockerfileWithOpentracing
+++ b/build/DockerfileWithOpentracing
@@ -1,4 +1,4 @@
-ARG NGINX_VERSION=1.17.3
+ARG NGINX_VERSION=1.17.4
 ARG OPENTRACING_CPP_VERSION=1.5.1
 
 FROM nginx:${NGINX_VERSION} AS opentracing-builder