diff --git a/Gemfile b/Gemfile
index b874786..6bf702f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,2 @@
 source 'https://rubygems.org'
-gemspec # dependencies specified in notion_cli.gemspec
\ No newline at end of file
+gemspec # dependencies specified in notion_cli.gemspec
diff --git a/notion.gemspec b/notion.gemspec
index afe74cc..7c01c7a 100644
--- a/notion.gemspec
+++ b/notion.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |spec|
       "README.md",
     ]
 
-    spec.required_ruby_version = ">= 2.5"
+    spec.required_ruby_version = ">= 2.6.3"
 
     spec.add_runtime_dependency('httparty', '~> 0.17')
     spec.add_runtime_dependency('json', '~> 2.2')