diff --git a/test_reqs.txt b/test_reqs.txt
index 7b5ce94..1461578 100644
--- a/test_reqs.txt
+++ b/test_reqs.txt
@@ -21,6 +21,6 @@ django-bootstrap3==24.3
 
 backports.zoneinfo;python_version<"3.9"
 webencodings==0.5.1 # django-markdownify
-tinycss2==1.3.0 # django-markdownify
+tinycss2==1.4.0 # django-markdownify
 bleach==6.1.0 # django-markdownify
 django-markdownify==0.9.5