diff --git a/disc_adj_fsi/Airfoil_2d/grad_young.opt.ref b/disc_adj_fsi/Airfoil_2d/grad_young.opt.ref
index fb60e367..4b64872e 100644
--- a/disc_adj_fsi/Airfoil_2d/grad_young.opt.ref
+++ b/disc_adj_fsi/Airfoil_2d/grad_young.opt.ref
@@ -1,2 +1,2 @@
 INDEX	GRAD
-0	-1.712659568251408e-03
+0	-1.712659650770606e-03