diff --git a/Gemfile.lock b/Gemfile.lock
index 113acbf7..e2662516 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -283,7 +283,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    puma (3.11.2)
+    puma (3.12.2)
     puma_worker_killer (0.1.0)
       get_process_mem (~> 0.2)
       puma (>= 2.7, < 4)