diff --git a/Gemfile.lock b/Gemfile.lock
index ca408b4..2ce94ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -238,7 +238,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.3)
-    puma (3.12.1)
+    puma (3.12.4)
     rack (2.0.7)
     rack-mini-profiler (1.0.2)
       rack (>= 1.2.0)