diff --git a/CRUD-with-Ruby/Gemfile.lock b/CRUD-with-Ruby/Gemfile.lock
index 937c046..3159953 100644
--- a/CRUD-with-Ruby/Gemfile.lock
+++ b/CRUD-with-Ruby/Gemfile.lock
@@ -66,7 +66,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.3)
+    crass (1.0.6)
     erubi (1.7.0)
     execjs (2.7.0)
     ffi (1.9.18)
@@ -82,21 +82,21 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.1.1)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.3)
     multi_json (1.12.2)
     nio4r (2.1.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.1-x86-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.7)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.7-x86-mingw32)
+      mini_portile2 (~> 2.4.0)
     public_suffix (3.0.1)
     puma (3.10.0)
     rack (2.0.3)