diff --git a/Gemfile.lock b/Gemfile.lock
index 190cc7c..29d3c8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,7 +93,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
     pg (1.1.4-x64-mingw32)
-    puma (3.12.2)
+    puma (3.12.3)
     rack (2.0.8)
     rack-proxy (0.6.5)
       rack