diff --git a/netlify.toml b/netlify.toml
index 18d4ef19e9..39822f50c5 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -2,8 +2,8 @@
 # unless otherwise overridden by more specific contexts.
 [build.environment]
   PYTHON_VERSION = "3.13"
-  HUGO_VERSION = "0.134.3"
-  DART_SASS_VERSION = "1.77.5"
+  HUGO_VERSION = "0.141.0"
+  DART_SASS_VERSION = "1.83.4"
   DART_SASS_URL = "https://github.com/sass/dart-sass/releases/download/"
 
 [build]
diff --git a/themes/scientific-python-hugo-theme b/themes/scientific-python-hugo-theme
index ef249164ce..42b638f37c 160000
--- a/themes/scientific-python-hugo-theme
+++ b/themes/scientific-python-hugo-theme
@@ -1 +1 @@
-Subproject commit ef249164ce7d7d67aaf55631b7c4005901b0e636
+Subproject commit 42b638f37c0f5869a112f0c274d03bc349d1a7b3