diff --git a/Gemfile b/Gemfile
index 6a35c663..50ae3704 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ ruby "3.3.5"
 
 # Core Rails gems
 gem "rails", "~> 8.0.2"
-gem "stringio", "~> 3.1.2"
+gem "stringio", "~> 3.1.8"
 gem "bootsnap", require: false  # Reduces boot times through caching
 
 # Database and ORM
diff --git a/Gemfile.lock b/Gemfile.lock
index 3b7092b2..c33e2df4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -422,7 +422,7 @@ GEM
       ostruct
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
-    stringio (3.1.7)
+    stringio (3.1.8)
     stripe (17.1.0)
     tailwindcss-rails (4.4.0)
       railties (>= 7.0.0)
@@ -518,7 +518,7 @@ DEPENDENCIES
   solid_queue
   sqlite3 (>= 2.1)
   stimulus-rails
-  stringio (~> 3.1.2)
+  stringio (~> 3.1.8)
   stripe
   tailwindcss-rails (~> 4.2)
   thruster