diff --git a/Dockerfile b/Dockerfile
index e703fc6..b6447a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,4 +19,4 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   && rm -rf /var/lib/apt/lists/* \
   && mkdir -p /var/lib/shiny-server/bookmarks/shiny
 
-RUN install2.r ggplot2 jpeg png stringr gridExtra grid testthat covr
+RUN install2.r ggplot2 jpeg png stringr gridExtra grid testthat covr tidycensus