diff --git a/requirements-dev.txt b/requirements-dev.txt
index 588597df..42f6c686 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -20,6 +20,7 @@ docutils<0.18
 Sphinx
 pydata-sphinx-theme
 sphinx-gallery
+sphinxemoji
 numpydoc
 nbsphinx
 image