diff --git a/Gemfile.lock b/Gemfile.lock
index d16c7c1..79ab637 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     orm_adapter (0.5.0)
     pdfkit (0.8.2)
     pg (1.1.3)
-    puma (3.12.0)
+    puma (3.12.6)
     rack (2.2.2)
     rack-proxy (0.6.5)
       rack