diff --git a/server/Gemfile.lock b/server/Gemfile.lock
index 6c4fb23..4518d30 100644
--- a/server/Gemfile.lock
+++ b/server/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.2)
-    puma (3.11.4)
+    puma (3.12.6)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)