diff --git a/pyproject.toml b/pyproject.toml
index bad69b37c..1cb6fe7d6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
   "celery==5.5.*",
   "chardet==5.2.*",
   "cryptography>=44.0.0",
-  "css-inline==0.14.*",
+  "css-inline==0.15.*",
   "defusedcsv>=1.1.0",
   "Django[argon2]==4.2.*,>=4.2.15",
   "django-bootstrap3==25.1",