diff --git a/Dockerfile b/Dockerfile
index 304247b..fc98f01 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,6 +29,7 @@ RUN apt-get update --yes && \
     libharfbuzz-dev \
     libfribidi-dev \
     sshpass \
+    patch \
     p7zip-full \
     sox \
     imagemagick \