1 files changed, 8 insertions, 5 deletions
diff --git a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb
index 67f9dd1c19..f9ffca0123 100644
--- a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb
+++ b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb
@@ -1,9 +1,12 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvalue_matrix" do
-  it "returns a diagonal matrix with the eigenvalues on the diagonal" do
-    Matrix[[14, 16], [-6, -6]].eigensystem.eigenvalue_matrix.should == Matrix[[6, 0],[0, 2]]
-    Matrix[[1, 1], [-1, 1]].eigensystem.eigenvalue_matrix.should == Matrix[[Complex(1,1), 0],[0, Complex(1,-1)]]
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvalue_matrix" do
+    it "returns a diagonal matrix with the eigenvalues on the diagonal" do
+      Matrix[[14, 16], [-6, -6]].eigensystem.eigenvalue_matrix.should == Matrix[[6, 0],[0, 2]]
+      Matrix[[1, 1], [-1, 1]].eigensystem.eigenvalue_matrix.should == Matrix[[Complex(1,1), 0],[0, Complex(1,-1)]]
+    end
   end
 end