diff --git a/Gemfile.lock b/Gemfile.lock
index a85993ca..481c3798 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -374,7 +374,7 @@ GEM
       slop (~> 3.4)
     psych (3.1.0)
     public_suffix (3.0.3)
-    puma (3.12.0)
+    puma (3.12.1)
     rack (2.0.6)
     rack-openid (1.3.1)
       rack (>= 1.1.0)