diff --git a/ci/matrix/mpl_37_py311/Pipfile.lock b/ci/matrix/mpl_37_py311/Pipfile.lock
index 448c597..a74f031 100644
--- a/ci/matrix/mpl_37_py311/Pipfile.lock
+++ b/ci/matrix/mpl_37_py311/Pipfile.lock
@@ -647,11 +647,12 @@
         },
         "jinja2": {
             "hashes": [
-                "sha256:7d6d50dd97d52cbc355597bd845fabfbac3f551e1f99619e39a35ce8c370b5fa",
-                "sha256:ac8bd6544d4bb2c9792bf3a159e80bba8fda7f07e81bc3aed565432d5925ba90"
+                "sha256:4a3aee7acbbe7303aede8e9648d13b8bf88a429282aa6122a993f0ac800cb369",
+                "sha256:bc5dd2abb727a5319567b7a813e6a2e7318c39f4f487cfe6c89c6f9c7d25197d"
             ],
+            "index": "pypi",
             "markers": "python_version >= '3.7'",
-            "version": "==3.1.3"
+            "version": "==3.1.4"
         },
         "jsonschema": {
             "hashes": [