diff --git a/Gemfile.lock b/Gemfile.lock
index 08e26a3..ffa46f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -146,7 +146,9 @@ GEM
     memoizable (0.4.2)
       thread_safe (~> 0.3, >= 0.3.1)
     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)
@@ -178,7 +180,7 @@ GEM
     puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.0)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -232,7 +234,7 @@ GEM
     rubocop-ast (0.0.3)
       parser (>= 2.7.0.1)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -255,10 +257,10 @@ GEM
       rack-protection (>= 2.0.0)
       redis (>= 4.1.0)
     simple_oauth (0.3.1)
-    sinatra (2.0.8.1)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     slim (4.1.0)
       temple (>= 0.7.6, < 0.9)