diff --git a/SDK_ruby/sample-project/Sample_SDK_testing/Gemfile.lock b/SDK_ruby/sample-project/Sample_SDK_testing/Gemfile.lock
index 3fd7af4..5550ede 100644
--- a/SDK_ruby/sample-project/Sample_SDK_testing/Gemfile.lock
+++ b/SDK_ruby/sample-project/Sample_SDK_testing/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
     mysql2 (0.5.2)
     nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
-    rack (1.6.11)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.11.1)