diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6402385..6dde5e8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -85,7 +85,7 @@ roman-numerals==4.1.0
     # via sphinx
 ruff==0.15.13
     # via pyuspto
-snowballstemmer==3.0.1
+snowballstemmer==3.1.0
     # via sphinx
 sphinx==9.1.0
     # via