diff --git a/pyproject.toml b/pyproject.toml
index 685bd54..2b1c076 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ packages = ["src/kbase"]
 [dependency-groups]
 dev = [
     "ipython==9.5.0",
-    "pymongo==4.15.2",
+    "pymongo==4.15.4",
     "pytest==8.4.2",
     "pytest-asyncio==1.2.0",
     "pytest-cov==7.0.0",