diff --git a/Dockerfile b/Dockerfile
index 2545a4b..cbebe55 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM rocker/verse:3.4.0
+FROM rocker/verse:3.4.1
 MAINTAINER "Carl Boettiger" cboettig@ropensci.org
 
 RUN apt-get update \