diff --git a/docker/ubuntu-arm/Dockerfile b/docker/ubuntu-arm/Dockerfile
index fab325e5e..075f7324e 100644
--- a/docker/ubuntu-arm/Dockerfile
+++ b/docker/ubuntu-arm/Dockerfile
@@ -36,6 +36,8 @@ ENV CC arm-linux-gnueabihf-gcc
 # build parity
 RUN git clone https://github.com/ethcore/parity && \
         cd parity && \
+        git checkout master && \
+        git pull && \
         mkdir -p .cargo && \
         echo '[target.armv7-unknown-linux-gnueabihf]\n\
         linker = "arm-linux-gnueabihf-gcc"\n'\