diff --git a/requirements.txt b/requirements.txt
index acf3a60142f..979296f7f8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -427,7 +427,7 @@ tabulate==0.10.0
     # via
     #   qcodes (pyproject.toml)
     #   qcodes
-tinycss2==1.4.0
+tinycss2==1.5.1
     # via bleach
 toolz==1.1.0
     # via