diff --git a/app/weblab-public/Gemfile.lock b/app/weblab-public/Gemfile.lock
index c651729..0f891f2 100644
--- a/app/weblab-public/Gemfile.lock
+++ b/app/weblab-public/Gemfile.lock
@@ -11,23 +11,33 @@ GEM
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
-    mustermann (1.0.3)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.0.7)
-    rack-protection (2.0.5)
+    racc (1.6.0)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
+    rake (13.0.6)
+    ruby2_keywords (0.0.5)
     rubyzip (1.2.2)
-    sinatra (2.0.5)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     thread_safe (0.3.6)
-    tilt (2.0.9)
+    tilt (2.0.10)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)