diff --git a/doc/source/requirements.txt b/doc/source/requirements.txt
index 5ae1e857..ab1cfca7 100644
--- a/doc/source/requirements.txt
+++ b/doc/source/requirements.txt
@@ -7,4 +7,4 @@ paramz
 cython
 mock
 sympy
-nose
\ No newline at end of file
+pytest
\ No newline at end of file