diff --git a/.ruby-version b/.ruby-version
index 4d9d11c..25e8632 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.2
+3.4.12
diff --git a/Gemfile b/Gemfile
index da1b9b4..0f76f5b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@
 # language governing permissions and limitations under the License.
 
 source 'https://rubygems.org'
-ruby '3.4.2'
+ruby '3.4.12'
 
 gem 'minitest',      '~> 5.25'
 gem 'rake',          '~> 13.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index a62a6ee..0fcb5c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,7 +63,7 @@ DEPENDENCIES
   rdoc-markdown (~> 0.4.2)
 
 RUBY VERSION
-   ruby 3.4.2p28
+   ruby 3.4.12p148
 
 BUNDLED WITH
    2.6.2