diff --git a/pyproject.toml b/pyproject.toml
index d7a97816c2d..fbc659194ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -93,7 +93,7 @@ doc = [
     "sphinx-copybutton>=0.5.0,<0.6",
     "sphinx-gallery>=0.14.0,<0.17",
     #"sphinx-notfound-page",
-    "sphinx_design>=0.4.0,<0.6",
+    "sphinx_design>=0.4.0,<0.7",
     #"sphinxcontrib-websupport",
     "SRTM.py",
     "utm",
@@ -115,7 +115,7 @@ doc-no-examples = [
     "sphinx-gallery>=0.14.0,<0.17",
     #"sphinx-notfound-page",
     #"sphinxcontrib-websupport",
-    "sphinx_design>=0.4.0,<0.6",
+    "sphinx_design>=0.4.0,<0.7",
 ]
 all = [
     "imageio>=2.30.0,<2.35",