diff --git a/INSTALL.txt b/INSTALL.txt
index 1aa398cc..3408197f 100644
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -15,14 +15,7 @@ or, if additional access rights are needed (Unix):
 
   sudo python setup.py install
 
-* The tests programs (test_*.py) are meant to be run through the Nose
-testing framework.  This can be achieved for instance with a command
+* The tests programs (test_*.py) are meant to be run through pytest.  This can be achieved for instance with a command
 like
 
-  nosetests -sv uncertainties/
-
-or simply
-
-  nosetests uncertainties/
-
-(for a less verbose output).
+  pytest ./tests
\ No newline at end of file
diff --git a/tests/test_uncertainties.py b/tests/test_uncertainties.py
index 7cd65f3f..7778df04 100644
--- a/tests/test_uncertainties.py
+++ b/tests/test_uncertainties.py
@@ -173,8 +173,6 @@ def check_op(op, num_args):
     for op in uncert_core.modified_ops_with_reflection:
         check_op(op, 2)
 
-# Additional, more complex checks, for use with the nose unit testing
-# framework.
 
 def test_copy():
     "Standard copy module integration"