diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2478bab..7a027ee 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,7 +4,7 @@ jobs:
   specs:
     strategy:
       matrix:
-        ruby-version: ['2.7', '3.0', '3.1']
+        ruby-version: ['3.0', '3.1']
 
     runs-on: ubuntu-latest
     env:
diff --git a/.rubocop.yml b/.rubocop.yml
index e07b9a3..673bd94 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -50,7 +50,7 @@ Style/ClassAndModuleChildren:
 
 AllCops:
   NewCops: disable # TODO: enable
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 3.0
   Exclude:
     - bin/*
     - "*.gemspec"
diff --git a/graphql_to_rest.gemspec b/graphql_to_rest.gemspec
index 9f39442..7b9774e 100644
--- a/graphql_to_rest.gemspec
+++ b/graphql_to_rest.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = "Allows to easily configure open api for rails application"
   spec.homepage = "https://github.com/povilasjurcys/graphql_to_rest"
   spec.license = "MIT"
-  spec.required_ruby_version = ">= 2.6.0"
+  spec.required_ruby_version = ">= 3.0.0"
 
   spec.metadata["allowed_push_host"] = "https://rubygems.org"