diff --git a/implementations/ruby/Gemfile.lock b/implementations/ruby/Gemfile.lock
index 21c0164..16f7f86 100644
--- a/implementations/ruby/Gemfile.lock
+++ b/implementations/ruby/Gemfile.lock
@@ -12,7 +12,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (3.11.2)
-    rack (2.0.5)
+    rack (2.0.8)
     rack-protection (2.0.4)
       rack
     sinatra (2.0.4)