diff --git a/pyproject.toml b/pyproject.toml
index 8d0fd9b9..e792017b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ classifiers = [
 requires-python = ">=3.9,<4.0"
 dependencies = [
     "blinker>=1.7.0",
-    "docutils>=0.20.1",
+    "docutils==0.20.1",
     "feedgenerator>=2.1.0",
     "jinja2>=3.1.2",
     "ordered-set>=4.1.0",