diff --git a/doc/requirements.txt b/doc/requirements.txt
index 4b88ac7362a2dbeda20209708b55d958d3cbf593..14d3a042f676aeced0d0de82e50d3696133ba51e 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -2,4 +2,5 @@ breathe
 teqp
 numpy
 jupyter
-nbconvert
\ No newline at end of file
+nbconvert
+nbsphinx
\ No newline at end of file