diff --git a/Dockerfile b/Dockerfile
index 0fe1f97..3ce0af5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.2
 
 RUN apk --update add python py-pip && \
-    pip install elasticsearch-curator==3.3.0
+    pip install elasticsearch-curator==3.4.0
 
 ENTRYPOINT ["/usr/bin/curator"]
diff --git a/README.md b/README.md
index 56fec8c..1ff5684 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ resulting in a just 50mb image.
 Image entrypoint is set to curator script, so just run the image:
 
 ```
-docker run --rm bobrik/curator:3.3.0 --help
+docker run --rm bobrik/curator:3.4.0 --help
 ```
 
 Pick whatever version you need.