diff --git a/requirements-docs.txt b/requirements-docs.txt
index d2b67beb..7f1f1ef5 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,6 +1,6 @@
 # documentation
 recommonmark==0.7.1
-Sphinx==8.2.3
+Sphinx==9.1.0
 sphinx-autodoc2==0.5.0
-myst-parser==4.0.1
+myst-parser==5.0.0
 sphinx-rtd-theme==3.1.0