diff --git a/Dockerfile b/Dockerfile
index 8218a4f..63a0fbc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,9 @@ ENV HTTP_BASIC_PASSWORD=gibberish
 ENV NOKOGIRI_USE_SYSTEM_LIBRARIES=1
 ENV EXTRA_PKGS=''
 
-RUN gem install --no-user-install --no-document --source https://rubygems.org geminabox gem-compiler
+COPY ./gem-compiler-0.10.0.gem /tmp/
+RUN gem install --no-user-install --no-document --source https://rubygems.org geminabox
+RUN gem install --no-user-install --no-document --source https://rubygems.org /tmp/gem-compiler-0.10.0.gem
 
 COPY ./gem-compiler.sh /usr/local/bin/gem-compiler
 COPY ./bootstrap.sh /usr/local/bin/bootstrap