diff --git a/Gemfile b/Gemfile
index 6cc0c6b..777d1c7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,5 +12,5 @@ group :development do
   gem "rubocop-performance", "~> 1.26"
   gem "rubocop-rake", "~> 0.7"
   gem "rubocop-rspec", "~> 3.10"
-  gem "simplecov", "~> 0.22", require: false
+  gem "simplecov", "~> 1.0", require: false
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 87182f7..f73cec3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,6 @@ GEM
     byebug (13.0.0)
       reline (>= 0.6.0)
     diff-lcs (1.6.2)
-    docile (1.4.1)
     io-console (0.8.2)
     json (2.20.0)
     language_server-protocol (3.17.0.6)
@@ -65,12 +64,7 @@ GEM
       regexp_parser (>= 2.0)
       rubocop (~> 1.86, >= 1.86.2)
     ruby-progressbar (1.13.0)
-    simplecov (0.22.0)
-      docile (~> 1.1)
-      simplecov-html (~> 0.11)
-      simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.13.2)
-    simplecov_json_formatter (0.1.4)
+    simplecov (1.0.0)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.2.0)
@@ -87,7 +81,7 @@ DEPENDENCIES
   rubocop-performance (~> 1.26)
   rubocop-rake (~> 0.7)
   rubocop-rspec (~> 3.10)
-  simplecov (~> 0.22)
+  simplecov (~> 1.0)
 
 BUNDLED WITH
   4.0.15