diff --git a/WebAPI/mail_api/Gemfile.lock b/WebAPI/mail_api/Gemfile.lock
index 5ce44e5..6e2105d 100644
--- a/WebAPI/mail_api/Gemfile.lock
+++ b/WebAPI/mail_api/Gemfile.lock
@@ -88,11 +88,13 @@ GEM
     minitest (5.14.4)
     msgpack (1.4.2)
     nio4r (2.5.7)
-    nokogiri (1.11.2-x86_64-darwin)
+    nokogiri (1.12.5-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.12.5-x86_64-linux)
       racc (~> 1.4)
     puma (5.2.2)
       nio4r (~> 2.0)
-    racc (1.5.2)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -150,6 +152,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-19
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (>= 1.4.4)