diff --git a/Gemfile.lock b/Gemfile.lock
index ab09278c..d38d53aa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -155,7 +155,9 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     mini_racer (0.1.15)
@@ -174,7 +176,8 @@ GEM
     popper_js (1.12.9)
     psych (3.0.2)
     public_suffix (3.0.2)
-    puma (3.11.4)
+    puma (4.3.11)
+      nio4r (~> 2.0)
     rack (2.0.5)
     rack-test (1.0.0)
       rack (>= 1.0, < 3)