diff --git a/templates/sinatra_app/Gemfile.lock b/templates/sinatra_app/Gemfile.lock
index 1ff7a08..7264ebc 100644
--- a/templates/sinatra_app/Gemfile.lock
+++ b/templates/sinatra_app/Gemfile.lock
@@ -14,9 +14,9 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
+    amazing_print (1.2.1)
     ansi (1.5.0)
     arel (6.0.4)
-    amazing_print (1.6.1)
     backports (3.6.8)
     builder (3.2.3)
     concurrent-ruby (1.1.5)
@@ -44,7 +44,7 @@ GEM
     netrc (0.11.0)
     pg (0.18.4)
     puma (3.4.0)
-    rack (1.6.11)
+    rack (1.6.13)
     rack-protection (1.5.5)
       rack
     rack-test (0.6.3)