diff --git a/Dockerfile b/Dockerfile
index f3deb22..10ceb55 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,7 +30,7 @@ RUN apk --no-cache add curl ruby ruby-dev python3 bash build-base gcc wget git \
 #     make install
 
 WORKDIR /bitcoin-dsl
-COPY Gemfile Rakefile.rb .
+COPY Gemfile Gemfile.lock Rakefile.rb .
 
 RUN gem install bundler:2.5.5 && \
     bundle install --without=development && \
diff --git a/Gemfile.lock b/Gemfile.lock
index 9d1149a..5f28c38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,6 +96,8 @@ GEM
     murmurhash3 (0.1.7)
     mutex_m (0.2.0)
     native-package-installer (1.1.9)
+    nokogiri (1.16.5-aarch64-linux)
+      racc (~> 1.4)
     nokogiri (1.16.5-x86_64-linux)
       racc (~> 1.4)
     parallel (1.24.0)
@@ -174,6 +176,7 @@ GEM
     yard (0.9.36)
 
 PLATFORMS
+  aarch64-linux
   x86_64-linux
 
 DEPENDENCIES