diff --git a/pyproject.toml b/pyproject.toml
index 781fc097..e9ee0667 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -75,6 +75,7 @@ pre-commit = "==3.5.0"
 
 isort = "<5.12.0"
 
+rstcheck = "<=6.2.0"
 
 [build-system]
 requires = ["poetry-core"]