diff --git a/chat-sample/Gemfile.lock b/chat-sample/Gemfile.lock
index 5233fdd..4ba7c6d 100644
--- a/chat-sample/Gemfile.lock
+++ b/chat-sample/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
       public_suffix (~> 4.0)
       typhoeus (~> 1.0)
     cocoapods-deintegrate (1.0.5)
-    cocoapods-downloader (1.5.1)
+    cocoapods-downloader (1.6.3)
     cocoapods-plugins (1.0.0)
       nap
     cocoapods-search (1.0.1)