diff --git a/test/parse_equation_test.rb b/test/parse_equation_test.rb
index <HASH>..<HASH> 100644
--- a/test/parse_equation_test.rb
+++ b/test/parse_equation_test.rb
@@ -1,4 +1,4 @@
-require 'minitest'
+require 'minitest/autorun'
 require_relative './../lib/latex_eval.rb'
 
 class TestParseEquation < Minitest::Test
diff --git a/test/parse_latex_test.rb b/test/parse_latex_test.rb
index <HASH>..<HASH> 100644
--- a/test/parse_latex_test.rb
+++ b/test/parse_latex_test.rb
@@ -1,4 +1,4 @@
-require 'minitest'
+require 'minitest/autorun'
 require_relative './../lib/latex_eval.rb'
 
 class TestParseLatex < Minitest::Test
diff --git a/test/postfix_notation_test.rb b/test/postfix_notation_test.rb
index <HASH>..<HASH> 100644
--- a/test/postfix_notation_test.rb
+++ b/test/postfix_notation_test.rb
@@ -1,4 +1,4 @@
-require 'minitest'
+require 'minitest/autorun'
 require_relative './../lib/latex_eval.rb'
 
 class TestPostfixNotation < Minitest::Test
need minitest/autorun to run single testfile