diff --git a/pyproject.toml b/pyproject.toml
index cf89378..6d51f3c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "docutils==0.19",
+    "docutils==0.21.1",
     "mistune==2.0.4",
 
     "attribution==1.6.2",