diff --git a/gem/Gemfile.lock b/gem/Gemfile.lock
index 19ab5a0f..d074a171 100644
--- a/gem/Gemfile.lock
+++ b/gem/Gemfile.lock
@@ -10,7 +10,6 @@ GEM
     json (2.19.5)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
-    lru_redux (1.1.0)
     minitest (5.25.1)
     parallel (1.28.0)
     parser (3.3.11.1)
@@ -47,6 +46,7 @@ GEM
       rubocop (>= 1.75.0, < 2.0)
       rubocop-ast (>= 1.47.1, < 2.0)
     ruby-progressbar (1.13.0)
+    sin_lru_redux (2.5.2)
     standard (1.54.0)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
@@ -59,8 +59,8 @@ GEM
     standard-performance (1.9.0)
       lint_roller (~> 1.1)
       rubocop-performance (~> 1.26.0)
-    tailwind_merge (0.13.2)
-      lru_redux (~> 1.1)
+    tailwind_merge (1.4.0)
+      sin_lru_redux (~> 2.5)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.2.0)
@@ -77,7 +77,7 @@ DEPENDENCIES
   rouge (~> 4.7.0)
   ruby_ui!
   standard (~> 1.0)
-  tailwind_merge (~> 0.12)
+  tailwind_merge (~> 1.4)
 
 BUNDLED WITH
    2.5.22
diff --git a/gem/ruby_ui.gemspec b/gem/ruby_ui.gemspec
index 08ce5bac..0399071e 100644
--- a/gem/ruby_ui.gemspec
+++ b/gem/ruby_ui.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency "phlex", "~> 2.1", ">= 2.1.2"
   s.add_development_dependency "rouge", "~> 4.7.0"
-  s.add_development_dependency "tailwind_merge", "~> 0.12"
+  s.add_development_dependency "tailwind_merge", "~> 1.4"
   s.add_development_dependency "rake", "~> 13.0"
   s.add_development_dependency "standard", "~> 1.0"
   s.add_development_dependency "minitest", "~> 5.0"