diff --git a/requirements.txt b/requirements.txt
index 2cec169e1d..d1143309c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ readtime==3.0.0
 regex==2026.9.29
 requests==2.34.2
 six==1.17.0
-soupsieve==3.0.4
+soupsieve==4.0
 urllib3==2.8.0
 watchdog==6.0.0
 mkdocs-asciinema-player==1.2.0