diff --git a/nav.py b/nav.py
index b67440a..192ea8e 100644
--- a/nav.py
+++ b/nav.py
@@ -74,7 +74,7 @@ NAMES = {
 CRUISE_SPEED = 0.87  # million km per day
 FUEL_PER_MKM = 0.142  # tonnes of fuel per million km
 LAUNCH_FUEL = 380.0  # tonnes of fuel to escape Earth's gravity
-WARP_FACTOR = warpdrive.calibrate(9)
+WARP_FACTOR = warpdrive.calibrate(9.5)
 
 
 def distance(a: str, b: str) -> float: