diff --git a/Gemfile.lock b/Gemfile.lock
index 8d350d3..b62a292 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -93,6 +93,7 @@ PATH
       dry-configurable (~> 0.13)
       faraday (~> 1.10.0)
       jwt (~> 2.3)
+      mail
       omniauth-auth0 (~> 3.0)
       omniauth-rails_csrf_protection
 
@@ -127,6 +128,7 @@ GEM
       responders
       warden (~> 1.2.3)
     diff-lcs (1.5.0)
+    digest (3.1.0)
     docile (1.4.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
@@ -171,6 +173,7 @@ GEM
       domain_name (~> 0.5)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
+    io-wait (0.2.1)
     jwt (2.3.0)
     loofah (2.14.0)
       crass (~> 1.0.2)
@@ -188,6 +191,13 @@ GEM
     multi_xml (0.6.0)
     multipart-parser (0.1.1)
     multipart-post (2.1.1)
+    net-protocol (0.1.2)
+      io-wait
+      timeout
+    net-smtp (0.3.1)
+      digest
+      net-protocol
+      timeout
     netrc (0.11.0)
     nio4r (2.5.8)
     nokogiri (1.13.1-x86_64-darwin)
@@ -310,6 +320,7 @@ GEM
     sqlite3 (1.4.2)
     thor (1.2.1)
     timecop (0.9.4)
+    timeout (0.2.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     unf (0.1.4)
@@ -341,6 +352,7 @@ DEPENDENCIES
   dotenv
   faker (~> 2.0)
   multipart-parser (~> 0.1.1)
+  net-smtp
   pry-byebug (~> 3.7)
   rack_session_access
   rails!
diff --git a/devise-auth0.gemspec b/devise-auth0.gemspec
index 981479d..f920023 100644
--- a/devise-auth0.gemspec
+++ b/devise-auth0.gemspec
@@ -30,6 +30,8 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("dry-configurable", "~> 0.13")
   s.add_runtime_dependency("faraday", "~> 1.10.0")
   s.add_runtime_dependency("jwt", "~> 2.3")
+  s.add_runtime_dependency("mail")
+  s.add_runtime_dependency('net-smtp')
   s.add_runtime_dependency("omniauth-auth0", "~> 3.0")
   s.add_runtime_dependency("omniauth-rails_csrf_protection")