diff --git a/Gemfile b/Gemfile
index 18e0256..8e06a0c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 gem 'rack'
-
+gem 'puma'
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..7bc119c
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,15 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    puma (3.4.0)
+    rack (1.6.4)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  puma
+  rack
+
+BUNDLED WITH
+   1.11.2