diff --git a/swebench/harness/constants.py b/swebench/harness/constants.py
index 7d1b452d..e948940b 100644
--- a/swebench/harness/constants.py
+++ b/swebench/harness/constants.py
@@ -495,7 +495,7 @@ class TestStatus(Enum):
 SPECS_SPHINX = {
     k: {
         "python": "3.9",
-        "pip_packages": ["tox==4.16.0", "tox-current-env==0.0.11"],
+        "pip_packages": ["tox==4.16.0", "tox-current-env==0.0.11", "Jinja2==3.0.3"],
         "install": "python -m pip install -e .[test]",
         "pre_install": ["sed -i 's/pytest/pytest -rA/' tox.ini"],
         "test_cmd": TEST_SPHINX,