diff --git a/requirements.txt b/requirements.txt
index ed4864f130b..eddf61d941e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -147,7 +147,7 @@ stack-data~=0.5.1
 stringparser~=0.5
 tabulate~=0.9.0
 terminado~=0.16.0
-tinycss2~=1.2.0
+tinycss2~=1.2.1
 tomli~=2.0.1
 tornado~=6.2
 towncrier~=22.8.0