diff --git a/pyproject.toml b/pyproject.toml
index 23ef44f..bd78e7d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "Werkzeug==3.1.9",
     "data-collections-api==0.1.0",
     "MDAnalysis==2.10.0",
-    "python-dotenv==1.2.3",
+    "python-dotenv==1.2.4",
     "gunicorn>=26,<27",
     "biosim-extractor>=1.0.1,<1.1"
 ]