diff --git a/pyproject.toml b/pyproject.toml
index dd7892ea2..8169b95fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ dependencies = [
   "markdown==3.8",  # 3.3.5 requires importlib-metadata>=4.4, but django-bootstrap3 requires importlib-metadata<3.
   # We can upgrade markdown again once django-bootstrap3 upgrades or once we drop Python 3.6 and 3.7
   "mt-940==4.30.*",
-  "oauthlib==3.2.*",
+  "oauthlib==3.3.*",
   "openpyxl==3.1.*",
   "packaging",
   "paypalrestsdk==1.13.*",