diff --git a/Gemfile.lock b/Gemfile.lock
index 08640749a0..fad8ec341f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -162,7 +162,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.2)
-    puma (3.11.3)
+    puma (3.12.6)
     rack (1.6.9)
     rack-jekyll (0.5.0)
       jekyll (>= 1.3)