diff --git a/Dockerfile b/Dockerfile
index a53934e..4056e35 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN apt-get update \
 # Make sure the dependencies are all cached so we won't hammer crates.io
 
 ADD old-git.tar.gz .
-RUN git checkout 690f07dab67111a75fe190f014c8c23ef1753598 \
+RUN git checkout 151f236a0b8de510b1896deeaa9c571f845040af \
 && git reset --hard \
 && cargo check