diff --git a/.ruby-version b/.ruby-version
index 94ff29cc4..6a81b4c83 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.1.1
+2.7.8
diff --git a/Gemfile.lock b/Gemfile.lock
index 041dd6212..6636800c4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -286,4 +286,4 @@ DEPENDENCIES
   xcov
 
 BUNDLED WITH
-   2.3.21
+   2.4.22