diff --git a/docs/requirements.txt b/docs/requirements.txt
index 656d8e8..d6c1111 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,6 +4,6 @@ myst-parser==4.0.0
 Sphinx==8.1.3
 # Older versions break Sphinx even though they're declared to be supported.
 docutils==0.21.2
-sphinxcontrib-programoutput==0.17
+sphinxcontrib-programoutput==0.18
 sphinx_copybutton==0.5.2
 furo==2024.8.6