diff --git a/apps/ruby-bundler/Gemfile.lock b/apps/ruby-bundler/Gemfile.lock
index 1f158dd..6cf501a 100644
--- a/apps/ruby-bundler/Gemfile.lock
+++ b/apps/ruby-bundler/Gemfile.lock
@@ -21,4 +21,4 @@ DEPENDENCIES
   sinatra
 
 BUNDLED WITH
-   2.0.2
\ No newline at end of file
+   2.3.26
\ No newline at end of file
diff --git a/buildpacks/ruby-bundler/bin/build b/buildpacks/ruby-bundler/bin/build
index 96063c0..d1f05e1 100755
--- a/buildpacks/ruby-bundler/bin/build
+++ b/buildpacks/ruby-bundler/bin/build
@@ -43,7 +43,7 @@ if [[ -f Gemfile.lock && ${local_bundler_checksum} == ${remote_bundler_checksum}
 else
   # Determine if there has been a gem dependency change and install new gems to the bundler layer; re-using existing and un-changed gems
   echo "---> Installing gems"
-  mkdir "${bundler_layer_dir}"
+  mkdir -p "${bundler_layer_dir}"
   cat > "${bundler_layer_dir}.toml" <<EOL
 cache = true
 launch = true