diff --git a/etc/data/magfield b/etc/data/magfield
index 72f32467cb..a70d843563 160000
--- a/etc/data/magfield
+++ b/etc/data/magfield
@@ -1 +1 @@
-Subproject commit 72f32467cb757394c75a1bcffc84af2f37615fd0
+Subproject commit a70d84356356068928979373c1f2c8b2203a21e8