diff --git a/docs/requirements.txt b/docs/requirements.txt
index 215312dba..1b2b7db0d 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -240,7 +240,7 @@ sphinx==8.1.3
     #   sphinx-gallery
 sphinx-copybutton==0.5.2
     # via pyopenms_viz (pyproject.toml)
-sphinx-gallery==0.18.0
+sphinx-gallery==0.20.0
     # via pyopenms_viz (pyproject.toml)
 sphinxcontrib-applehelp==2.0.0
     # via sphinx