diff --git a/Gemfile.lock b/Gemfile.lock
index e24c3d4..e992c47 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -228,7 +228,9 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
@@ -245,7 +247,7 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (5.0.2)
     nifty-generators (0.4.6)
-    nio4r (2.5.2)
+    nio4r (2.5.7)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     non-stupid-digest-assets (1.0.9)
@@ -265,7 +267,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.3)
-    puma (4.3.5)
+    puma (5.3.1)
       nio4r (~> 2.0)
     rabl (0.14.0)
       activesupport (>= 2.3.14)