diff --git a/Gemfile b/Gemfile
index 34703e0..6d862b9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ gem "bskyrb", github: "minter/bskyrb", branch: "main"
 gem "dotenv-rails", "~> 3", require: "dotenv/load"
 gem "httparty", "~> 0"
 gem "ostruct"
-gem "net-smtp", "~> 0.4.0"
+gem "net-smtp", "~> 0.5.1"
 gem "nokogiri"
 gem "pry-rails"
 gem "puppeteer-ruby"
diff --git a/Gemfile.lock b/Gemfile.lock
index a0e99ee..77453ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
       net-protocol
     net-protocol (0.2.2)
       timeout
-    net-smtp (0.4.0.1)
+    net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.4)
     nokogiri (1.18.2-aarch64-linux-gnu)
@@ -359,7 +359,7 @@ DEPENDENCIES
   minitest
   mocha
   mock_redis
-  net-smtp (~> 0.4.0)
+  net-smtp (~> 0.5.1)
   nokogiri
   ostruct
   pry-rails