diff --git a/.ruby-version b/.ruby-version
index 37c2961..f989260 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.2
+3.4.4
diff --git a/lib/cartesian_for_geo.rb b/lib/cartesian_for_geo.rb
index 83b712f..d90b5f9 100644
--- a/lib/cartesian_for_geo.rb
+++ b/lib/cartesian_for_geo.rb
@@ -1,5 +1,7 @@
 require 'cartesian_for_geo/version'
-require 'gorilla_patch/cover'
+if RUBY_VERSION <= '2.7'
+  require 'gorilla_patch/cover'
+end
 
 module CartesianForGeo
 	## Collection (Array) of Polygons
@@ -167,7 +169,9 @@ def concat(other)
 			self
 		end
 
-		using GorillaPatch::Cover
+    if RUBY_VERSION <= '2.7'
+      using GorillaPatch::Cover
+    end
 
 		def include?(other)
 			side == other.side && lat_range.cover?(other.lat_range)