diff --git a/Gemfile.lock b/Gemfile.lock
index 4acca65..c916325 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,7 +56,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.6)
     erubi (1.8.0)
     execjs (2.7.0)
     ffi (1.11.1)
@@ -66,12 +66,12 @@ GEM
       concurrent-ruby (~> 1.0)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-    libv8 (3.16.14.19-x86_64-darwin-18)
+    libv8 (3.16.14.19-x86_64-linux)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -81,13 +81,13 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
     minitest (5.11.3)
     msgpack (1.3.0)
     nio4r (2.4.0)
-    nokogiri (1.10.3)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5-x86_64-linux)
+      racc (~> 1.4)
     puma (3.12.1)
+    racc (1.6.1)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -167,7 +167,7 @@ GEM
     websocket-extensions (0.1.4)
 
 PLATFORMS
-  ruby
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (>= 1.1.0)