diff --git a/requirements-dev.txt b/requirements-dev.txt
index 06d97a0..cddbe41 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-sphinx>=8.0.0
+sphinx>=8.1.3
 myst-parser>=4.0.0
 sphinxcontrib-bibtex>=2.6.0
 pybtex>=0.24.0