diff --git a/Dockerfile b/Dockerfile
index 5f390650..8a2c985e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libssl-dev \
     libxslt-dev \
     make \
+    patch \
     zlib1g-dev
 
 RUN mkdir /install