diff --git a/Gemfile.lock b/Gemfile.lock
index bf6fd6a1..2240c988 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -252,7 +252,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.5.0)
     mini_racer (0.3.1)
@@ -264,7 +266,7 @@ GEM
     net-scp (3.0.0)
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.1.0)
-    nio4r (2.5.4)
+    nio4r (2.5.7)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -296,7 +298,7 @@ GEM
       pry (~> 0.9)
       slop (~> 3.0)
     public_suffix (4.0.6)
-    puma (4.3.7)
+    puma (4.3.8)
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)