diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..fa7adc7
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.3.5
diff --git a/Gemfile.lock b/Gemfile.lock
index d64b4b2..95c56de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -276,4 +276,4 @@ DEPENDENCIES
   webrick (~> 1.7)
 
 BUNDLED WITH
-   2.5.9
+   2.5.20