diff --git a/Gemfile.lock b/Gemfile.lock
index 07a81f7..82fad6a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -224,7 +224,9 @@ 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 (2.4.0)
     minitest (5.14.1)
@@ -232,7 +234,7 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mustermann-grape (1.0.1)
       mustermann (>= 1.0.0)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
@@ -249,7 +251,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.5)
-    puma (4.3.5)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-accept (0.4.5)