diff --git a/pact_broker/Gemfile.lock b/pact_broker/Gemfile.lock
index 6497aa2..355412b 100644
--- a/pact_broker/Gemfile.lock
+++ b/pact_broker/Gemfile.lock
@@ -113,7 +113,7 @@ GEM
       rake (>= 0.8.1)
     pg (1.4.1)
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.6.3)
     rack-protection (2.2.0)
       rack
     rainbow (3.1.1)