diff --git a/scripts/advanced_statistics.py b/scripts/advanced_statistics.py
index 01880c7..294af45 100755
--- a/scripts/advanced_statistics.py
+++ b/scripts/advanced_statistics.py
@@ -39,5 +39,5 @@ for command, ts in zip(commands, times):
     print()
     print("  percentiles:")
     print(f"     P_05 .. P_95:    {p05:.3f} s .. {p95:.3f} s")
-    print(f"     P_25 .. P_75:    {p25:.3f} s .. {p75:.3f} s  " f"(IQR = {iqr:.3f} s)")
+    print(f"     P_25 .. P_75:    {p25:.3f} s .. {p75:.3f} s  (IQR = {iqr:.3f} s)")
     print()
diff --git a/scripts/ruff.toml b/scripts/ruff.toml
index 42ce445..86df3c6 100644
--- a/scripts/ruff.toml
+++ b/scripts/ruff.toml
@@ -1,2 +1,2 @@
 [lint]
-extend-select = ["I"]
+extend-select = ["I", "UP", "RUF"]