diff --git a/Dockerfile b/Dockerfile
index 6e0e17a..2aa8257 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ ENV LANG='en_US.UTF-8' \
 RUN echo http://dl-4.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories && \
   apk -U update && \
   apk -U upgrade --ignore alpine-baselayout && \
-  apk -U add libintl libmediainfo ca-certificates mono curl && \
+  apk -U add icu libintl libmediainfo ca-certificates mono curl && \
   apk del make gcc g++ && \
   rm -rf /tmp/src && \
   rm -rf /var/cache/apk/* && \