diff --git a/Gemfile b/Gemfile
index 242b1e2..655a865 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,8 +40,8 @@ gem "thruster", require: false
 # Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
 # gem "image_processing", "~> 1.2"
 
-gem "tailwindcss-ruby", "~> 3"
-gem "tailwindcss-rails", "~> 3"
+gem "tailwindcss-ruby", "~> 4"
+gem "tailwindcss-rails", "~> 4"
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
diff --git a/Gemfile.lock b/Gemfile.lock
index faa581b..f628204 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -194,7 +194,7 @@ GEM
       activesupport (>= 7.0.0)
       rack
       railties (>= 7.0.0)
-    psych (5.2.3)
+    psych (5.2.4)
       date
       stringio
     public_suffix (6.0.2)
@@ -310,13 +310,13 @@ GEM
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.1.7)
-    tailwindcss-rails (3.3.2)
+    tailwindcss-rails (4.2.3)
       railties (>= 7.0.0)
-      tailwindcss-ruby (~> 3.0)
-    tailwindcss-ruby (3.4.17)
-    tailwindcss-ruby (3.4.17-aarch64-linux)
-    tailwindcss-ruby (3.4.17-arm64-darwin)
-    tailwindcss-ruby (3.4.17-x86_64-linux)
+      tailwindcss-ruby (~> 4.0)
+    tailwindcss-ruby (4.1.5)
+    tailwindcss-ruby (4.1.5-aarch64-linux-gnu)
+    tailwindcss-ruby (4.1.5-arm64-darwin)
+    tailwindcss-ruby (4.1.5-x86_64-linux-gnu)
     thor (1.3.2)
     thruster (0.1.13)
     thruster (0.1.13-aarch64-linux)
@@ -371,8 +371,8 @@ DEPENDENCIES
   solid_cache
   solid_queue
   stimulus-rails
-  tailwindcss-rails (~> 3)
-  tailwindcss-ruby (~> 3)
+  tailwindcss-rails (~> 4)
+  tailwindcss-ruby (~> 4)
   thruster
   turbo-rails
   tzinfo-data