diff --git a/Gemfile b/Gemfile
index 0540dc9..1151d8e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby '2.6.2'
+ruby '2.6.5'
 
 # command
 gem "fileutils"