diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 59a9ee9..6249b16 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,12 +15,12 @@ repos:
       args: ["--autofix", "--no-ensure-ascii"]
 
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.21.1
+    rev: v3.21.2
     hooks:
     -   id: pyupgrade
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.14.5
+  rev: v0.15.8
   hooks:
     - id: ruff
       args: ["--fix"]
diff --git a/src/finch/einstein.py b/src/finch/einstein.py
index 34281cd..a5c4de3 100644
--- a/src/finch/einstein.py
+++ b/src/finch/einstein.py
@@ -196,7 +196,7 @@ def run(self, xp, kwargs):
         arg = self.arg.run(xp, loops, kwargs)
         axis = tuple(i for i in range(len(loops)) if loops[i] not in self.idxs)
         if self.op is not None:
-            op = getattr(xp, reduction_ops.get(self.op, None))
+            op = getattr(xp, reduction_ops.get(self.op))
             val = op(arg, axis=axis)
         else:
             assert set(self.idxs) == set(loops)