diff --git a/Gemfile.lock b/Gemfile.lock
index 410a093..c1964fe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     pry-byebug (1.3.3)
       byebug (~> 2.7)
       pry (~> 0.10)
-    puma (3.5.2)
+    puma (3.12.6)
     rack (1.5.2)
     rack-protection (1.5.1)
       rack