diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7fdc6c9..164ee19 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -28,7 +28,7 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.8.6
+    rev: v0.9.0
     hooks:
       - id: ruff
         args: [--fix]
diff --git a/pymolresponse/td.py b/pymolresponse/td.py
index 3034e02..fb1ceec 100644
--- a/pymolresponse/td.py
+++ b/pymolresponse/td.py
@@ -106,7 +106,7 @@ def print_results_nwchem(self) -> str:
             iocc, ivirt = indices_sorted[idx]
             lines.append(
                 f"{idx + 1:>5d}{1:>5d}{iocc + 1:>5d}{ivirt + 1:>5d} "
-                f'{"X":<5}{moene[iocc]:>10.3f}{moene[ivirt]:>10.3f}{ediff_sorted[idx]:>10.3f}'
+                f"{'X':<5}{moene[iocc]:>10.3f}{moene[ivirt]:>10.3f}{ediff_sorted[idx]:>10.3f}"
             )
         lines.append("--------------------------------------------------------")
         return "\n".join(lines)