diff --git a/pyproject.toml b/pyproject.toml
index 6c515fb..3f82318 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,7 @@ docs = [
     "sphinxcontrib-details-directive",
     "sphinx_copybutton",
     "furo",
-    "markupsafe<2.1"
+    "markupsafe<3.1"
 ]
 
 [project.scripts]