diff --git a/pyproject.toml b/pyproject.toml
index 34f72b69..93664d02 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,7 +77,6 @@ optional = true
 [tool.poetry.group.docs.dependencies]
 sphinx = ">=6,<8"
 sphinx-rtd-theme = ">=1.3,<3.0"
-certifi = ">=2018.4.16"
 expiringdict = ">=1.1.4"
 pyrfc3339 = ">=1.0"
 jsonpickle = ">1.4.1"